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Vertical Stretches and Shrinks of Exponential Functions Answers

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Consider the exponential function f(x) = (15x). What is the value of the growth factor of the function?

Question illustration
A
One-fifth
Option A
B
One-third
Option B
C
5
D
15
2
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Which graph represents a function with an initial value of ?

Question illustration
A
On a coordinate plane, an exponential function approaches y = 0 in quadrant 2 and increases into quadrant 1. It goes through (negative 1, 0.08), (0, 0.4), (1, 2).
Option A
B
On a coordinate plane, an exponential function approaches y = 0 in quadrant 2 and increases into quadrant 1. It goes through (negative 1, 0.1), (0, 0.5), (1, 2.5).
Option B
C
On a coordinate plane, an exponential function approaches y = 0 in quadrant 2 and increases into quadrant 1. It goes through (negative 1, 0.4), (0, 0.2), (1, 1).
Option C
D
On a coordinate plane, an exponential function approaches y = 0 in quadrant 2 and increases into quadrant 1. It goes through (negative 1, 0.12), (0, 0.6), (1, 3).
Option D
3

A 2-column table has 5 rows. The first column is labeled x with entries negative 2, negative 1, 0, 1, 2. The second column is labeled f (x) with entries 0.2, 0.4, 0.8, 1.6, 3.2.

Question illustration
A
f(x) = 2(2x)
B
f(x) = 0.8(0.8x)
C
f(x) = 2(0.8x)
D
f(x) = 0.8(2x)
4

On a coordinate plane, an exponential function decreases from quadrant 2 into quadrant 1 and approaches y = 0. It crosses the y-axis at (0, 1).

Question illustration
A
f(x) = 2(6)x
B
f(x) = (6)x
Option B
C
f(x) = 2
Option C
D
f(x) =
Option D
5

On a coordinate plane, an exponential function approaches y = 0 in quadrant 2 and increases into quadrant 1. It goes through (negative 1, 1.5), (0, 3), (1, 6).

Question illustration
A
f(x) = 2(3x)
B
f(x) = 3(3x)
C
f(x) = 3(2x)
D
f(x) = 2(2x)
6

Which value of a in the exponential function below would cause the function to stretch?

Question illustration
A
0.3
B
0.9
C
1.0
D
1.5
7

Which exponential function has an initial value of 2?

A
f(x) = 2(3x)
B
On a coordinate plane, an exponential function approaches y = 0 in quadrant 2 and increases into quadrant 1. It crosses the y-axis at (0, 0.5) and goes through (2, 2).
Option B
C
f(x) = 3(2x)
D
A 2-column table has 5 rows. The first column is labeled x with entries negative 2, negative 1, 0, 1, 2. The second column is labeled f (x) with entries one-eighth, one-fourth, one-half, 1, 2.
Option D
8

A 2-column table has 4 rows. The first column is labeled x with entries negative 1, 0, 1, 2. The second column is labeled f (x) with entries 18, 6, 2, two-thirds.

Question illustration
A
One-third
Option A
B
Two-thirds
Option B
C
2
D
6
9

A 2-column table has 5 rows. The first column is labeled x with entries negative 2, negative 1, 0, 1, 2. The second column is labeled f (x) with entries 12.5, 2.5, 0.5, 0.1, 0.02.

Question illustration
A
f(x) = 0.2(0.5x)
B
f(x) = 0.5(5x)
C
f(x) = 0.5(0.2x)
D
f(x) = 0.2(0.2x)
10

A 2-column table has 4 rows. The first column is labeled x with entries negative 2, negative 1, 0, 1. The second column is labeled f (x) with entries 0.004, 0.02, 0.1, 0.5.

Question illustration
A
0.2
B
0.1
C
5
D
20

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