Solving Logarithmic Equations using Technology

Question 1

–2.8760–0.34770.71241.3738

Revolt · Accepted Answer

B: –0.3477

Question 2

The expression is the result of applying the change of base formula to a logarithmic expression. Which could be the original expression?

Revolt · Accepted Answer

C:

Question 3

Use the change of base formula to approximate the solution to log0.515 = 1 – 2x. Round to the nearest hundredth.

Revolt · Accepted Answer

2.45

Question 4

Which graph shows the solution to the equation log2(3x – 1) = 2?

Revolt · Accepted Answer

B:

Question 5

Graph a system of equations to approximate the value of x, the rate of depreciation. Give your answer as a percent.

Revolt · Accepted Answer

B: about 13%

Question 6

What are the approximate solutions of the equation? Check all that apply.

Revolt · Accepted Answer

A: ; D:

Question 7

Did you include the following in your solution?

Revolt · Accepted Answer

A: Identify the system of equations that can be graphed to solve the problem.

Question 8

Question 8

Revolt · Accepted Answer

: -1.89; : 1.14

Question 9

Solve log2x = log53 + 1 by graphing. Round to the nearest tenth.

Revolt · Accepted Answer

3.2

Question 10

Solve log2(x – 1) = log12(x – 1) by graphing.x =

Revolt · Accepted Answer

2

Solving Logarithmic Equations using Technology Answers