AnswersDHS Algebra 2 VSolving Logarithmic Equations using Technology

Solving Logarithmic Equations using Technology Answers

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1
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Use the change of base formula to approximate the solution to log0.515 = 1 – 2x. Round to the nearest hundredth. ⇒ 2.45

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Answer:

PENDING

2
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Question text not available

Answer:

0.2

3

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

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
4

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

A
about 4%
B
about 13%
C
about 1.2%
D
cannot be determined
5

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

A
Option
Option A
B
Option
Option B
C
Option
Option C
D
Option
Option D
6

Question text not available

Answers:
Blank 1:-2.1
Blank 2:0.2
7

Question text not available

Answers:
Blank 1:PENDING
Blank 2:0.2
8

Solve log2x = log53 + 1 by graphing. Round to the nearest tenth. ⇒ 3.2

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Answer:

PENDING

9

Solve log2(x – 1) = log12(x – 1) by graphing.x = ⇒ 2

Answer:

PENDING

10

Elsa tries to solve the following equation, and determines there is no solution. Is she correct? Explain. log2x = log2(3x + 5) + 4

Answer:

Identify the system of equations that can be graphed to solve the problem. Use the change of base formula. Determine that the graphs of the two equations do not intersect. Determine that Elsa is correct; the equation has no solution.

11

Did you include the following in your solution?

A
Identify the system of equations that can be graphed to solve the problem.
B
Use the change of base formula.
C
Determine that the graphs of the two equations do not intersect.
D
Determine that Elsa is correct; the equation has no solution.

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