Evaluating Expressions Review

Evaluating Expressions Review

by RACHAL STEWARD

​The Power of Parenthesis

​Don't forget to use ( ) when substituting in your variables.

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​They will save you a lot of time when performing Order of Operations because you can use Desmos.

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​www.desmos.com/scientific

Multiple Choice

Evaluate when a = 15:

2(a - 5) + 2

• 22

• 27

• 14

• 7

Multiple Choice

6a - 3d when a = 1, d = 2

• 3

• 12

• 1

• 0

Multiple Choice

Evaluate   2x + 3 + x²

for x = 4

• 17

• 27

• 19

• 25

Multiple Choice

8y + 12 - 2z for y = 4 and z = 2

• 40

• 20

• 84

• 34

Multiple Choice

a² - b² Evaluate if a=4 and b =2

• 4

• 20

• -4

• 12

Multiple Choice

Evaluate 8a - b     if a = 10   and   b = 6

• 74

• 38

• 1000

• 9000

Multiple Choice

b² + 4 when b = 3

• 10

• 12

• 13

• 11

Multiple Choice

Evaluate when x = 2 and y = 5:

2 + (12 - 5x) ⋅ 2y

• 22

• 40

• 142

• -86

Multiple Choice

The expression 7h + 1.50d can be used to find the total earnings after h hours and d deliveries have been made.  How much will Sally make after working 10 hours and making 3 deliveries?

• $74.50

• $36

Multiple Choice

You order CDs for $14.25 each and the website charges $4.50 for each shipment. The expression $14.25p + $4.50 represents the cost of p CDs.  Find the total cost for ordering 4 CDs.

• $61.50

• $22.75

​THE END

​> How did you do?

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​> Do you still have questions on this Unit 1 topic?

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​> Let me know in class if you still need help!