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Log Equations Lesson

Log Equations Lesson

Assessment

Presentation

Mathematics

10th - 12th Grade

Easy

Created by

Lindsey Justice

Used 2+ times

FREE Resource

6 Slides • 8 Questions

1

Log Equations

2

media

3

Multiple Choice

6ln(5x+2)+6 = 66\ln\left(5x+2\right)+6\ =\ -6  

1

e2e^{-2}  

2

e252\frac{e^{-2}}{5}-2  

3

e225\frac{e^{-2}-2}{5}  

4

e+3e+3  

4

Multiple Choice

4ln(2x+3)15=174\ln\left(2x+3\right)-15=17  

1

e83e^8-3  

2

2

3

e823\frac{e^8}{2}-3  

4

e832\frac{e^8-3}{2}  

5

media

6

Multiple Choice

log2(9x)+2log2(8)=3\log_2\left(9x\right)+2\log_2\left(8\right)=3  

1

172\frac{1}{72}  

2

72

3

3

4

9

7

media

8

Multiple Choice

log2(5x)2log2(2)=1\log_2\left(5x\right)-2\log_2\left(2\right)=1  

1

110\frac{1}{10}  

2

10

3

85\frac{8}{5}  

4

88  

9

media

10

Multiple Choice

log2(x27)log2(x+5)=0\log_2\left(x^2-7\right)-\log_2\left(x+5\right)=0  

1

4, - 3

2

-3, 5

3

6, - 2

4

88  

11

Multiple Choice

log2(3x2+4)log2(2x+6)=3\log_2\left(3x^2+4\right)-\log_2\left(2x+6\right)=3  

1

22, 222,\ 2  

2

223,, 2\frac{22}{3,},\ -2  

3

223, 2-\frac{22}{3},\ 2  

4

no real solutions

12

media

13

Multiple Choice

log6(2x28x6)=2\log_6\left(2x^2-8x-6\right)=2  

1

7, 3

2

7, - 3

3

0

4

36

14

Multiple Choice

log(x+4)(3x24x+2)=2\log_{\left(x+4\right)}\left(3x^2-4x+2\right)=2  

1

5, 2

2

0, -7

3

7, - 1

4

7, 2

Log Equations

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