AnswersFL-1200330-Algebra 2 CRGraphing Logarithmic Functions

Solving Logarithmic Equations using Technology Answers

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Which system of equations could be graphed to solve the equation below?

Question illustration
A
y 1 = StartFraction log 0.5 Over x EndFraction , y 2 = StartFraction log 3 Over 2 + x EndFraction
Option A
B
y 1 = StartFraction log x Over log 0.5 EndFraction, y 2 = StartFraction log 2 + x Over log 3 EndFraction
Option B
C
y 1 = StartFraction log 0.5 Over log 3 EndFraction, y 2 = StartFraction log x Over log 2 + x EndFraction
Option C
D
y 1 = StartFraction log x Over log 0.5 EndFraction, y 2 = StartFraction log 2 Over log 3 EndFraction + x
Option D
2
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Which system of equations could be graphed to solve the equation below?

Question illustration
A
y 1 = 3 x, y 2 = 2 x
Option A
B
y 1 = log (2 x + 1), y 2 = 3 x minus 2
Option B
C
y 1 = log 2 x + 1, y 2 = 3 x minus 2
Option C
D
y 1 = log (2 x + 1 + 2), y 2 = 3 x
Option D
3

Devonte used the change of base formula to approximate . Which expression did Devonte use?

Question illustration
A
Log StartFraction 8 Over 25 EndFraction
Option A
B
StartFraction log 8 Over log 25 EndFraction
Option B
C
log StartFraction 25 Over 8 EndFraction
Option C
D
StartFraction log 25 Over log 8 EndFraction
Option D
4

Which is equivalent to ?

Question illustration
A
log n = StartFraction log 2 Over 4 EndFraction
Option A
B
n = StartFraction log 2 Over log 4 EndFraction
Option B
C
n = log 4 times log 2
Option C
D
log n = 4 log 2
Option D
5

What is the approximate value of x in the equation below.

Question illustration
A
–3.396
B
–0.708
C
0.304
D
0.955
6

Kim solved the equation below by graphing a system of equations.What is the approximate solution to the equation?

Question illustration
A
0.6
B
0.9
C
1.4
D
1.6
7

What is the approximate value of q in the equation below?

Question illustration
A
–1.613
B
–1.522
C
0.585
D
3.079
8

Consider the equation below.Which system of equations can represent the equation?

Question illustration
A
y 1 = StartFraction log (x + 3) Over log 4 EndFraction, y 2 = StartFraction log (2 + x) Over log 2 EndFraction
Option A
B
y 1 = StartFraction log x + 3 Over log 4 EndFraction, y 2 = StartFraction log 2 + x Over log 2 EndFraction
Option B
C
y 1 = StartFraction log 4 Over log 2 EndFraction, y 2 = StartFraction log (x + 3) Over log (2 + x) EndFraction
Option C
D
y 1 = StartFraction log x + 3 Over 4 EndFraction, y 2 = StartFraction log 2 + x Over 2 EndFraction
Option D
9

Tenisha solved the equation below by graphing a system of equations.Which point approximates the solution for Tenisha’s system of equations?

Question illustration
A
(0.9, 0.8)
B
(1.0, 1.4)
C
(2.3, 1.1)
D
(2.7, 13.3)
10

What is the approximate value of x in the equation below?

Question illustration
A
–2.523
B
–1.317
C
2.880
D
7.485

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