Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy.

Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our Privacy Policy and User Agreement for details.

Like this presentation? Why not share!

1,632 views

Published on

Glencoe Algebra 01

Chapter 01 - Section 01

William James Calhoun

WWPS

Published in:
Education

No Downloads

Total views

1,632

On SlideShare

0

From Embeds

0

Number of Embeds

11

Shares

0

Downloads

17

Comments

0

Likes

1

No embeds

No notes for slide

- 1. Chapter 01 – Section 01 Variables and Expressions
- 2. © William James Calhoun To translate verbal expressions into mathematical expressions and vice versa. This section is the basics of the basics. Terms to become familiar with: • variables – symbol used to express an unspecified number • algebraic expressions – one or more numbers and variables along with one or more arithmetic operations • factors – quantities that are being multiplied • product – the result of factors being multiplied
- 3. © William James Calhoun EXAMPLE 1α: Write an algebraic expression for each verbal expression. a. three times a number x subtracted from 24 b. 5 greater than half of a number t EX1EX1ββ
- 4. © William James Calhoun EXAMPLE 1β: Write an algebraic expression for each verbal expression. a. m increased by 5 b. the difference of x and 9 c. 7 times the product of x and t
- 5. © William James Calhoun EXAMPLE 2α: Write a verbal expression for each algebraic expression. a. (3 + b) ÷ y b. 5y + 10x EX2EX2ββ
- 6. © William James Calhoun EXAMPLE 2β: Write a verbal expression for each algebraic expression. a. 9t b. 8 + a c. 7 – 3y
- 7. © William James Calhoun More terms you will need to become familiar with: • power – an expression with a superscript representing a number multiplied by itself a certain number of times Examples of powers: 54 and x3 • base – the number or variable that is multiplied • exponent – the superscript number that signifies the number of times multiplication should occur 45 = 4 * 4 * 4 * 4 * 4 four is multiplied by itself five times { = 1024
- 8. © William James Calhoun EXAMPLE 3α: Write a power that represents the number of smallest squares in the large square. EX3EX3ββ Count the number of squares along one side. There are 8 squares in each row. Count the number of squares along the other side. There are 8 squares in each column. To find the number of smallest squares, you would multiply 8 * 8. 8 * 8 can be written as a power by 1) writing the base, 8, once 2) writing the number of times multiplied, 2, once superscripted Answer: 82
- 9. © William James Calhoun EXAMPLE 3β: Write a power that represents the number of smallest squares in the large square.
- 10. © William James Calhoun EXAMPLE 4α: Evaluate 34 . EX4EX4ββ Method 1 Write the problem out in long form. 3 * 3 * 3 * 3 Multiply in small steps. 3 * 3 = 9 9 * 3 = 27 27 * 3 = 81 Method 2 Use your calculator. Hit the “3” key. Hit the power key – “^” or “yx ”. Hit the “4” key. Hit the “=“ key. Answer: 81.
- 11. © William James Calhoun EXAMPLE 4β: Evaluate each expression. a. 35 b. 53
- 12. © William James Calhoun PAGE 8 #15 – 39 odd

No public clipboards found for this slide

×
### Save the most important slides with Clipping

Clipping is a handy way to collect and organize the most important slides from a presentation. You can keep your great finds in clipboards organized around topics.

Be the first to comment