AnswersOC27 MATH COLL LIB ARTS-1207350-S1-Maguire-DAquinoReflections of Exponential Functions

Reflections of Exponential Functions — Unit test Answers

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Which of the following best describes how the y values are changing over each interval?xy122438416532

A
They are increasing by 2 each time.
B
They are increasing by 4 each time.
C
They are being multiplied by 2 each time.
D
They are being multiplied by 4 each time.
22
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An account is opened with $7,595.96 with a rate of increase of 2% per year. After 1 year, the bank account contains $7,746.90. Assuming no deposits or withdrawals are made, which equation can be used to find y, the amount of money in the account after x years? (Round money values to the nearest penny.)

A
y = 7,746.90(1.02)x
B
y = 7,746.90(0.02)x
C
y = 7,595.96(1.02)x
D
y = 7,595.96(0.02)x
23

An exponential growth function has an asymptote of y = –3. Which might have occurred in the original function to permit the range to include negative numbers?

A
A whole number constant could have been added to the exponential expression.
B
A whole number constant could have been subtracted from the exponential expression.
C
A whole number constant could have been added to the exponent.
D
A whole number constant could have been subtracted from the exponent.
24

What is the value of ?

Question illustration
Answer not available
25

Which is the graph of f(x) = 2(3)x?

A
Option
B
Option
C
Option
D
Option
26

Adita has two options for how to invest $1,000.Plan A: Put the $1,000 in an account that pays $100 per year.Plan B: Put the $1,000 in an account that pays 5 percent interest per year.Which statement is true?

A
Plan A will be worth more than plan B after two years.
B
Plan A will be worth the same amount as plan B after one year.
C
Plan B will be worth more than plan A after three years.
D
Plan B will be worth more than plan A after four years.
27

Which is the graph of ?

Question illustration
A
Option
B
Option
C
Option
D
Option
28

Which expressions have a value of ? Check all that apply.

Question illustration
A
(Two-thirds) Superscript 4
Option A
B
(StartFraction 16 Over 3 EndFraction) Superscript 4
Option B
C
(StartFraction 4 Over 81 EndFraction) squared
Option C
D
(StartFraction 4 Over 9 EndFraction) squared
Option D
E
(StartFraction 1 Over 81 EndFraction) Superscript 16
Option E
29

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?

Question illustration
A
(2, 9)
B
(2, –10)
C
(2, 14)
Option C
D
(2, 5)

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