Graphing Logarithmic Functions

Question 1

What is the inverse of the logarithmic function f(x) = log2x?

Revolt · Accepted Answer

B: f –1(x) = 2x

Question 2

Question 2

Revolt · Accepted Answer

A: There is no power of 4 that is equal to 0.; C: Its inverse does not have any x-intercepts.

Question 3

Question 3

Revolt · Accepted Answer

B: Both increase from left to right.; C: Both have an asymptote of x = 0.

Question 4

The graph of f(x) = log x + 3 is the graph ofg(x) = log x translated 3 units

Revolt · Accepted Answer

A: up.

Question 5

The graph of f(x) = −log x is a of the graph of g(x) = log x.

Revolt · Accepted Answer

C: reflection in the x-axis

Question 6

The point (–1, 0.5) lies on the graph of f –1(x) = 2x. Based on this information, which point lies on the graph of f(x) = log2x?

Revolt · Accepted Answer

B: (0.5, –1)

Question 7

If you are given the graph of g, how could you graphf(x) = log x + 3?For each point on the graph of g,

Revolt · Accepted Answer

B: add 3 to the y-coordinate.

Question 8

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

Revolt · Accepted Answer

B:

Question 9

What happens to the value of f(x) = log4x as x approaches 0 from the right?

Revolt · Accepted Answer

A: f(x) approaches negative infinity

Question 10

What is the hydrogen ion concentration of orange juice that has a pH of 1?

Revolt · Accepted Answer

A: 0.1 mole per liter

Graphing Logarithmic Functions Answers