Exponentials and Geometric Unit Test Review

What is
f(x)= - (-3)^x
evaluated for x = 4

• -81
• -1/81
• 1/81
• 81

What is
f(x)= (8)^x
evaluated for x = 0

• -8
• 0
• 1
• 8

What is (-4)³

• -64
• -1/64
• 1/64
• 64

What is  (5)^-3

• -125
• -1/125
• 1/125
• 125

What is the common ratio for the sequence?
4, 2, 1, ½, ¼, ...

• -2
• -½
• ½
• 2

What is the common ratio for the sequence?
1, 3, 9, 27, ...

• -3
• -⅓
• ⅓
• 3

Which set of ordered pairs represents an Exponential Function?

• (0,8), (2,24), (4,40), (5,56)
• (0,3), (1,9), (2,81), (3,6561)
• (0,-1), (1,-4), (2,-9), (3,-16)
• (0,-2), (2,-8), (4,-32), (6,-128)

What would the tenth term in the sequence be?
⅓, 1, 3, 9, ...

• 729
• 2187
• 6561
• 19683

A ball is dropped from a height of 18feet. The function f(x)=18(0.5)^x gives the height in feet of each bounce, where x is the bounce number. What will be the height of the third bounce to the nearest tenth of a foot?

• 4.5 ft
• 2.3 ft
• 1.1 ft
• 0.6 ft

Describe the Function shown

• Constant
• Increasing
• Decreasing