The document provides examples and definitions of discrete and continuous data. Discrete data takes on limited, separated values like whole numbers, while continuous data varies smoothly over a range of values. Examples given of discrete data are numbers of suitcases lost and ears of corn harvested. An example of continuous data is the growth of corn plants.
This is your introduction to domain, range, and functions. You will learn more about domain, range, functions, relations, x-values, and y-values. There are definitions and explanations of each concepts. There are questions to help quiz yourself. Test your abilities. Enjoy.
This is your introduction to domain, range, and functions. You will learn more about domain, range, functions, relations, x-values, and y-values. There are definitions and explanations of each concepts. There are questions to help quiz yourself. Test your abilities. Enjoy.
2. 2. Simplify: -3(5x - 3) -2(6x - 6)
3. Find the length & width: x P = 68
2x + 10
4. Find the length
and width
5. Solve for b: A = ½b • h
3. Vocabulary:
1. Discreet Data: Data that has a limited number of
values, with space between each value. Usually whole
numbers.
2. Continuous Data: Data with values that vary
continuously over the graph. Data that is unbroken by
space between values.
Examples:
1. The number of suitcases lost by an airline:
2. The growth of corn plants:
3. The number of ears of corn harvested.
4. function
Not a function
Not a function
function
……….
5.
6. 1a. Domain: {-4, -2, 3, 4} Range: {-2, 2, 1}
1b. Domain: {0, 1, 7} Range: {-6, 2, -4, 4}
2a. 2b.
Function Not a Function
3a. 3b.
-4 0
-1 -6
-2 1 Not a
2 2
3 7 Function
1 -4
4 4
10. H P C
e e o
i o s
g p t
h l
t e
S 4 H 5 S 6
p e p
e i e
e g e
d h d
t
A. Cost of a laptop, past 10 years B. Drag racing before hitting tree
C. World Population, last 700 years D. Person's height during lifetime
E. 3-point shot F. Running up, then down a hill
11. The x variable is given on each graph. You will add the y
variable before watching the video. Please number your
graphs, matching the order of the video watched.
17. y = 5x -7 y = 5x -7 y = 5x - 7
y = 5(-3) - 7 y= 5(-2) -7 y = 5(4) - 7
y = -15 - 7 y= -10 - 7 y= 20 - 7
y= -22 y= -17 y= 13
……….
18. Practice
Steps
1. Sub in each domain value in one @ a time.
2. Solve for y in each
3. List y values in braces.
19. 1. y = 3x + 1 y = 3x + 1 y = 3x + 1
y = 3(-4) + 1 y = 3(0) + 1 y = 3(2) + 1
y = -12 + 1 y=0+1 y=6+1
y = -11 y=1 y=7
Ans. { -11, 1, 7}
2. y = -2x + 3 y = -2x + 3 y = -2x + 3
y = -2(-5) + 3 y = -2(-2) + 3 y = -2(6) + 3
y = 10 + 3 y = 4 +3 y = -12 +3
y = 13 y=7 y = -9
20. Using the Vertical Line Test
Use the vertical line test to check
if the relation is a function only if
the relation is already graphed.
1. Hold a straightedge (pen, ruler,
etc) vertical to your graph.
2. Drag the straightedge from left
to right on the graph.
3. If the straightedge intersects
the graph once in each spot ,
then it is a function.
4. If the straightedge intersects the
graph more than once in any
spot, it is not a function.
A function!
……….