Review-Solving Exponential and Logarithmic Equations

Logarithmic functions are the inverse of...

• linear functions

• quadratic functions

• polynomial functions

• exponential functions

The common log has what base?

• 10

• e

• 1

• 0

Log with base e $\log_e$ is the same thing as...

• e

• natural logarithm (ln)

• common logarithm (log)

• nothing special, just $\log_e$  

Solve $\log_2\left(x+3\right)=4$  

• 3

• 10

• 13

• 16

Solve $3^{2x-6}=81$  

• -1

• 4

• 5

•  $\log4$  

Solve $\log_5\left(4x-7\right)=\log_5\left(x+5\right)$  

• 3

• 4

• 7

• 12

Solve $2\cdot4^{3x-6}-8=120$  

• 2.9

• 3

• 4

• 8

Solve $\ln x=3.1$  

• 22.198

• e

• 1.131

• 21.66

Solve $7^{n+10}-8=6$  

• -7.374

• -7.360

• -8.644

• -8.853

Solve $2\log_2x=10$  

• 32

• 25

• 1.6

• 512