Translations of Exponential Functions — Unit test Answers
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1
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What are the domain and range of f(x) = + 2?
A
domain: ; range: {y | y > 0}
B
domain: ; range: {y | y > 2}
C
domain: {x | x is a real number}; range: {y | y > 2}D
domain: {x | x is a real number}; range: {y | y > –2}2
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Which function represents exponential decay?
A
f(x) =
B
f(x) =
C
f(x) = 4
D
f(x) = 4
3
Which is the graph of ?
A
OptionB
OptionC
OptionD
Option4
Which is the initial value that shrinks an exponential growth function by 50%?
A
One-fifth
B
One-fourth
C
One-third
D
One-half
5
Which value of a in the exponential function below would cause the function to shrink?f(x) = a
A
Four-fifths
B
Five-fourths
C
Three-halves
D
Seven-fourths
6
Tanisha is graphing the function f(x) = 25()x. She begins by plotting the point (1, 15). Which could be the next point she plots on the graph?
A
(2, 9)B
(2, –10)C
(2, 14)
D
(2, 5)7
f(x) = g(x) = – 3
A
The range of g(x) is , {y | y > 0} and the range of f(x) is {y | y > –3}.B
The range of g(x) is , {y | y > 3} and the range of f(x) is {y | y > 0}.C
The asymptote of g(x) is the asymptote of f(x) shifted three units down.D
The asymptote of g(x) is the asymptote of f(x) shifted three units up.8
Which equation represents the function f(x) = (1.6)x after it has been translated 5 units up and 9 units to the right?
A
g(x) = (1.6)x + 5 − 9B
g(x) = (1.6)x + 5 + 9C
g(x) = (1.6)x − 9 + 5D
g(x) = (1.6)x + 9 + 5Did you find these answers helpful?
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