U5 LESSON 5 Evaluating Exponential Expressions

​Evaluating Exponential Expressions and Graphs

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Skills needed

• PEMDAS

• Substitution ​

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Multiple Choice

What is the value of 4 + 2³ x 3?

• 18

• 30

• 36

• 28

Multiple Choice

b² + 4
when b = 3

• 10

• 12

• 13

• 11

Multiple Choice

Evaluate the expression.   Let g = 3    h = 9 
4h + 2g + 4

• 42

• 46

• 34

• 58

Multiple Choice

Evaluate the expression when
x =5    and   z = 4
z²  - 2x

• 6

• 2

• 17

• 26

Multiple Choice

If $$y=3ab+2b^3$$   what is y when a = 1 and b = 2?

(ASVAB)

• 16

• 20

• 22

• 18

Multiple Choice

Given x = 0.5 and y = 4 what is the value of $$4x^2\left(2y+2\right)$$  

• 11

• 10

• 16

• 14

Multiple Choice

Evaluate the expression 3 x 15s - 6h

when s = 1.5 and h = 3.

• 67.5

• 49.5

• 26.25

• 15.5

Multiple Choice

Which equation best represents the graph?

• $$x=2^y$$

• $$y=2^x$$

• $$y=\left(\frac{1}{2}\right)^x$$

• $$y=x^2$$

Multiple Choice

Which graph matches $$y=2^{-x}$$  

(ALEKS) (Desmos allowed)

Multiple Choice

Which equation best describes the graph? 

• y = 2^x + 4

• y = 2^x - 3

• y = 2^x - 4

• y = 2^x + 3