1. Evaluating Algebraic Expressions, given values
WP: Evaluate Algebraic Expressions

2. To EVALUATE means to FIND THE VALUE OF THE EXPRESSION when the value of the variables are known.
FIRST – replace the variables with the known (given) value.
THEN – follow the Order of Operations.

3. 1) Evaluate for j = 8 and k = 12
First – replace the variables with the given values.
Use the Order of Operations to find your answer.
REDUCE

4. 2) Evaluate for x =4, y = 4, z = 2
First – replace the variables with the given values.
Use the Order of Operations to find your answer.

5. 3) Evaluate for x = 3, y = 2 ½ , z = ½
First – replace the variables with the given values.
Use the Order of Operations to find your answer.

6. Word Problems: Formula Replace n Solve
4. The cost of a school banquet is $ n, where n is the number of people attending. What is the cost for 83 people?
Formula
Replace n
Solve

7. Formula Replace s Solve
5. An employee who receives a weekly salary of $200 and an 8% commission is paid according to the formula p = 0.08s + 200, where p represents the total amount earned weekly and s is the total weekly sales. Find the earnings for a week with $3818 total sales.
Formula
Replace s
Solve

8. Formula Replace x Solve
6. Imagine that you owned a T-shirt business. The cost of making the designs and buying the T-shirts is $ In addition to these one time charges, the cost of printing each shirt is $ The average cost per T-shirt for the business to manufacture x T-shirts is given by the following formula. Find the average cost per T-shirt when x is 100.
Formula
Replace x
Solve