1. Like Terms and Evaluating Expressions 8-9-16
Goals for today: Recognize and combine like terms. Evaluate expressions.

2. Like Terms and Evaluating Expressions 8-9-16
Warm Up:
What are the coefficients in the polynomial
-5x3 + 3x2 -4
2) Does the polynomial above have a linear term?
How can you tell?
Graph the following point on the coordinate plane (3, 5).
Translate (slide) the point 5 spaces left and 4
spaces down. Label the new point

3. Like Terms and Evaluating Expressions 8-9-16
Like Terms --Be able to identify like terms in an expression

4. Like Terms and Evaluating Expressions 8-9-16
Like Terms (notes)
All constants are like terms because we can combine (add) them. 6x

5. Like Terms and Evaluating Expressions 8-9-16
Like Terms (notes)
Terms with variables are like terms only if they have the same variables and same exponents.
3x – 4 + 5x

6. Like Terms and Evaluating Expressions 8-9-16
Like Terms (notes)
In the expression below, what are the like terms? Combine the like terms to simplify the expression
8y + 5x – 4x y - 8

7. Like Terms and Evaluating Expressions 8-9-16
Like Terms (notes)
In the expression below, what are the like terms? Combine them to simplify.
2x2 + 3x – 15x x

8. Like Terms and Evaluating Expressions 8-9-16
Like Terms (notes)
In the expression below, what are the like terms? Combine them to simplify.
8xy – 4x2y + 2x2y +1 -5xy + 7

9. Like Terms and Evaluating Expressions 8-9-16
Whiteboards
Simplify the expression below.
4y + 9x – 2y – 4 + 8x

10. Like Terms and Evaluating Expressions 8-9-16
Whiteboards
Simplify the expression.
2x2 + 5y2 – 4x2 + 6

11. Like Terms and Evaluating Expressions 8-9-16
Whiteboards Give an example of like terms (a pair) Give a non-example of like terms

12. Like Terms and Evaluating Expressions 8-9-16
Evaluating Expressions ---be able to correctly substitute in and solve equations

13. Like Terms and Evaluating Expressions 8-9-16
Evaluating Expressions (notes)
Solve for A if x = 5, y = 7
A = 7xy

14. Like Terms and Evaluating Expressions 8-9-16
Evaluating Expressions (notes)
Solve for A if x = 5, y = 7
A = 3x + y

15. Like Terms and Evaluating Expressions 8-9-16
Evaluating Expressions (notes)
Solve for A if x = 5, y = 7
A = x2 - y

16. Like Terms and Evaluating Expressions 8-9-16
Whiteboards Solve for A if x = 4, y = 8 A = 2xy

17. Like Terms and Evaluating Expressions 8-9-16
Whiteboards Solve for A if x = 9, y = 12 A = 3y – 2x

18. Like Terms and Evaluating Expressions 8-9-16
Whiteboards Solve for A if x = 9, y = 12 A = x2 - y

19. Like Terms and Evaluating Expressions 8-9-16
Classwork Scavenger Hunt You can work on your own or in a group of 2.

20. Like Terms and Evaluating Expressions 8-9-16
Classwork Scavenger Hunt You can work on your own or in a group of 2.