Practice Test

Question 1

What are the domain and range of f of x is equal to 1 sixth to the x th power plus 2 ?

Revolt · Accepted Answer

D: domain:  start set x such that x is a real number end set ; range:  start set y such that y is greater than 2 end set

Question 2

Pherris is graphing the function f of x is equal to 2 times 3 to the x th power He begins with the point 1 comma 6 Which could be the next point on his graph?

Revolt · Accepted Answer

A: 2 comma 18

Question 3

The function f of x is equal to 8 times 1 fourth to the x th power is reflected across the y -axis to create g of x Which table of values could be used to graph g of x ?

Revolt · Accepted Answer

C: Table with 3 columns and 6 rows.Row 1: Column 1, 'x'; Column 2, 'f of x'; Column 3, 'g of x' Row 2: Column 1, 'negative 2'; Column 2, '128'; Column 3, '1 half' Row 3: Column 1, 'negative 1'; Column 2, '32'; Column 3, '2' Row 4: Column 1, '0'; Column 2, '8'; Column 3, '8' Row 5: Column 1, '1'; Column 2, '2'; Column 3, '32' Row 6: Column 1, '2'; Column 2, '1 half'; Column 3, '128'

Question 4

Which is the initial value that shrinks an exponential growth function by 50 percent ?

Revolt · Accepted Answer

B: 1 half

Question 5

Which is the graph of the sequence defined by the function f of x is equal to 100 times 0 point 5 raised to the x minus 1 power ?

Revolt · Accepted Answer

C: Image with description On a coordinate plane, 4 points are plotted. The points are (1 comma 100), (2 comma 50), (3 comma 25), (4 comma 12.5).

Question 6

Tanisha is graphing the function f of x is equal to 25 times 3 fifths to the x th power She begins by plotting the point 1 comma 15 Which could be the next point she plots on the graph?

Revolt · Accepted Answer

A: 2 comma 9

Question 7

An exponential function f of x is reflected across the x -axis to create the function g of x Which is a true statement regarding f of x and g of x ?

Revolt · Accepted Answer

D: The two functions have opposite output values of each other for any given input value.

Question 8

Which value of A in the exponential function would cause the function to shrink? f of x is equal to a times 3 halves to the x th power

Revolt · Accepted Answer

D: 4 fifths

Question 9

Which function represents exponential growth?

Revolt · Accepted Answer

A: f of x is equal to 3 to the x th power

Question 10

Which function represents exponential decay?

Revolt · Accepted Answer

C: f of x is equal to 4 times 2 thirds to the x th power

Practice Test Answers

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