* Identify, write, and analyze conditional statements
* Write the inverse, converse, and contrapositive of a conditional statement
* Write a counterexample to a fake conjecture
* Identify, write, and analyze the truth value of conditional statements.
* Write the inverse, converse, and contrapositive of a conditional statement.
Identify, write, and analyze conditional statements.
Write the converse, inverse, and contrapositive of a conditional statement.
Write biconditional statements.
* Identify, write, and analyze conditional statements
* Write the inverse, converse, and contrapositive of a conditional statement
* Write a counterexample to a false conjecture
* Write a biconditional statement
The student is able to (I can):
Use inductive reasoning to identify patterns and make conjectures
Find counterexamples to disprove conjectures
Identify, write, and analyze the truth value of conditional statements.
Write the inverse, converse, and contrapositive of a conditional statement.
* Identify, write, and analyze the truth value of conditional statements.
* Write the inverse, converse, and contrapositive of a conditional statement.
Identify, write, and analyze conditional statements.
Write the converse, inverse, and contrapositive of a conditional statement.
Write biconditional statements.
* Identify, write, and analyze conditional statements
* Write the inverse, converse, and contrapositive of a conditional statement
* Write a counterexample to a false conjecture
* Write a biconditional statement
The student is able to (I can):
Use inductive reasoning to identify patterns and make conjectures
Find counterexamples to disprove conjectures
Identify, write, and analyze the truth value of conditional statements.
Write the inverse, converse, and contrapositive of a conditional statement.
* Model exponential growth and decay
* Use Newton's Law of Cooling
* Use logistic-growth models
* Choose an appropriate model for data
* Express an exponential model in base e
* Construct perpendicular and angle bisectors
* Use bisectors to solve problems
* Identify the circumcenter and incenter of a triangle
* Use triangle segments to solve problems
* Model exponential growth and decay
* Use Newton's Law of Cooling
* Use logistic-growth models
* Choose an appropriate model for data
* Express an exponential model in base e
* Construct perpendicular and angle bisectors
* Use bisectors to solve problems
* Identify the circumcenter and incenter of a triangle
* Use triangle segments to solve problems
* Find the distance between two points
* Find the midpoint of two given points
* Find the coordinates of an endpoint given one endpoint and a midpoint
* Find the coordinates of a point a fractional distance from one end of a segment
* Connect functions to their graphs
* Graph piecewise-defined functions
* Graph absolute value functions
* Graph greatest-integer functions
* Interpret graphs
* Use the vertical line test to determine a function
* Connect functions to their graphs
* Graph piecewise-defined functions
* Graph absolute value functions
* Graph greatest-integer functions
* Interpret graphs
* Use the vertical line test to determine a function
* Introduce functions and function notation
* Develop skills in constructing and interpreting the graphs of functions
* Learn to apply this knowledge in a variety of situations
* Recognize graphs of common functions.
* Graph functions using vertical and horizontal shifts.
* Graph functions using reflections about the x-axis and the y-axis.
* Graph functions using compressions and stretches.
* Combine transformations.
* Identify intervals on which a function increases, decreases, or is constant
* Use graphs to locate relative maxima or minima
* Test for symmetry
* Identify even or odd functions and recognize their symmetries
* Understand and use piecewise functions
* Solve polynomial equations by factoring
* Solve equations with radicals and check the solutions
* Solve equations with rational exponents
* Solve equations that are quadratic in form
* Solve absolute value equations
* Determine whether a relation or an equation represents a function.
* Evaluate a function.
* Use the vertical line test to identify functions.
* Identify the domain and range of a function from its graph
* Identify intercepts from a function’s graph
* Solve counting problems using the Addition Principle.
* Solve counting problems using the Multiplication Principle.
* Solve counting problems using permutations involving n distinct objects.
* Solve counting problems using combinations.
* Find the number of subsets of a given set.
* Solve counting problems using permutations involving n non-distinct objects.
* Use summation notation.
* Use the formula for the sum of the first n terms of an arithmetic series.
* Use the formula for the sum of the first n terms of a geometric series.
* Use the formula for the sum of an infinite geometric series.
* Solve annuity problems.
* Find the common ratio for a geometric sequence.
* List the terms of a geometric sequence.
* Use a recursive formula for a geometric sequence.
* Use an explicit formula for a geometric sequence.
* Find the common difference for an arithmetic sequence.
* Write terms of an arithmetic sequence.
* Use a recursive formula for an arithmetic sequence.
* Use an explicit formula for an arithmetic sequence.
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Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
1. Conditional Statements
The student is able to (I can):
• Identify, write, and analyze conditional statements.
• Write the inverse, converse, and contrapositive of a
conditional statement.
• Write a counterexample to a false conjecture.
2. inductive
reasoning
conjecture
Reasoning that a rule or statement is true
because specific cases are true.
A statement believed true based on
inductive reasoning.
Complete the conjecture:
The product of an odd and an even number
is ______ .
3. inductive
reasoning
conjecture
Reasoning that a rule or statement is true
because specific cases are true.
A statement believed true based on
inductive reasoning.
Complete the conjecture:
The product of an odd and an even number
is ______ .
To do this, we consider some examples:
(2)(3) = 6 (4)(7) = 28 (2)(5) = 10
even
4. counterexample
If a conjecture is true, it must be true for
every case. Just one example for which the
conjecture is false will disprove it.
A case that proves a conjecture false.
To be a counterexample, the first part must
be true, and the second part must be false.
Example: Find a counterexample to the
conjecture that all students who take
Geometry are 10th graders.
5. counterexample
If a conjecture is true, it must be true for
every case. Just one example for which the
conjecture is false will disprove it.
A case that proves a conjecture false.
To be a counterexample, the first part must
be true, and the second part must be false.
Example: Find a counterexample to the
conjecture that all students who take
Geometry are 10th graders.
There are students in our class who are
taking Geometry, but are not 10th graders.
6. conditional
statement
hypothesis
conclusion
A statement that can be written as an “if-
then” statement.
Example: If today is Saturday, then we
don’t have to go to school.
The part of the conditional following the
word “if” (underline once).
“today is Saturday” is the hypothesis.
The part of the conditional following the
word “then” (underline twice).
“we don’t have to go to school” is the
conclusion.
7. Notation
Examples
Conditional statement: p → q, where
p is the hypothesis and
q is the conclusion.
Identify the hypothesis and conclusion:
1. If I want to buy a book, then I need
some money.
2. If today is Thursday, then tomorrow is
Friday.
3. Call your parents if you are running late.
8. Notation
Examples
Conditional statement: p → q, where
p is the hypothesis and
q is the conclusion.
Identify the hypothesis and conclusion:
1. If I want to buy a book, then I need
some money.
2. If today is Thursday, then tomorrow is
Friday.
3. Call your parents if you are running late.
9. Examples
To write a statement as a conditional,
identify the sentence’s hypothesis and
conclusion by figuring out which part of the
statement depends on the other.
Write a conditional statement:
• Two angles that are complementary are
acute.
• Even numbers are divisible by 2.
10. Examples
To write a statement as a conditional,
identify the sentence’s hypothesis and
conclusion by figuring out which part of the
statement depends on the other.
Write a conditional statement:
• Two angles that are complementary are
acute.
If two angles are complementary, then
they are acute.
• Even numbers are divisible by 2.
If a number is even, then it is divisible
by 2.
11. To prove a conjecture false, you just have
to come up with a counterexample.
• The hypothesis must be the same as the
conjecture’s and the conclusion is
different.
Example: Write a counterexample to the
statement, “If a quadrilateral has four right
angles, then it is a square.”
12. As we saw with inductive reasoning, to
prove a conjecture false, you just have to
come up with a counterexample.
• The hypothesis must be the same as the
conjecture’s and the conclusion is
different.
Example: Write a counterexample to the
statement, “If a quadrilateral has four right
angles, then it is a square.”
A counterexample would be a quadrilateral
that has four right angles (true hypothesis)
but is not a square (different conclusion).
So a rectangle would work.
13. Each of the conjectures is false. What
would be a counterexample?
If I get presents, then today is my birthday.
If Lamar is playing football tonight, then
today is Friday.
14. Each of the conjectures is false. What
would be a counterexample?
If I get presents, then today is my birthday.
• A counterexample would be a day that I
get presents (true hyp.) that isn’t my
birthday (different conc.), such as
Christmas.
If Lamar is playing football tonight, then
today is Friday.
• Lamar plays football (true hyp.) on days
other than Friday (diff. conc.), such as
games on Thursday.
15. Examples Determine if each conditional is true. If
false, give a counterexample.
1. If your zip code is 76012, then you live
in Texas.
True
2. If a month has 28 days, then it is
February.
September also has 28 days, which
proves the conditional false.
Texas
76012
16. negation of p “Not p”
Notation: ~p
Example: The negation of the statement
“Blue is my favorite color,” is “Blue is not
my favorite color.”
Related Conditionals Symbols
Conditional p → q
Converse q → p
Inverse ~p → ~q
Contrapositive ~q →~p
17. Example Write the conditional, converse, inverse,
and contrapositive of the statement:
“A cat is an animal with four paws.”
Type Statement
Conditional
(p → q)
If an animal is a cat, then it has
four paws.
Converse
(q → p)
If an animal has four paws,
then it is a cat.
Inverse
(~p → ~q)
If an animal is not a cat, then it
does not have four paws.
Contrapos-
itive
(~q → ~p)
If an animal does not have four
paws, then it is not a cat.
18. Example Write the conditional, converse, inverse,
and contrapositive of the statement:
“When n2 = 144, n = 12.”
Type Statement
Truth
Value
Conditional
(p → q)
If n2 = 144, then n = 12.
F
(n = –12)
Converse
(q → p)
If n = 12, then n2 = 144. T
Inverse
(~p → ~q)
If n2 144, then n 12 T
Contrapos-
itive
(~q → ~p)
If n 12, then n2 144
F
(n = –12)
19. biconditional A statement whose conditional and
converse are both true. It is written as
“p if and only if q”, “p iff q”, or “p q”.
To write the conditional statement and
converse within the biconditional, first
identify the hypothesis and conclusion,
then write p → q and q → p.
A solution is a base iff it has a pH greater
than 7.
p → q: If a solution is a base, then it has a
pH greater than 7.
q → p: If a solution has a pH greater than 7,
then it is a base.
20. Writing a biconditional statement:
1. Identify the hypothesis and conclusion.
2. Write the hypothesis, “if and only if”,
and the conclusion.
Example: Write the converse and
biconditional from:
If 4x + 3 = 11, then x = 2.
Converse: If x = 2, then 4x + 3 = 11.
Biconditional: 4x + 3 = 11 iff x = 2.