Assignment - Logs and Log Func

Rewrite log_x95 = 2.3

• x^2.3 = 95

• 95^2.3 = x

• 2.3⁹⁵ = x

• x⁹⁵ = 2.3

Tags

CCSS.HSF.BF.B.5

Without a calculator, list the following in order, least to greatest:

A) log₅ 30

B) log_0.25 32

C) log₇ 49

D) log₈ 40

• A,B,C,D

• A,B,D,C

• B,D,C,A

• B,D,A,C

Rewrite 1.6^(x+2) = 14.1

• log_1.614.1 = x+2

• log_1.6(x+2) = 14.1

• log_14.1(x+2) = 1.6

• log_(x+2)1.6 = 14.1

Tags

CCSS.HSF.BF.B.5

Convert log(x)=5 to exponential form

• 1⁵=x
• 10^x=5
• x⁵=10
• 10⁵=x

Tags

CCSS.HSF.BF.B.5

When you want to find the inverse of a function, you first

• Solve for y

• Change to exponential form

• Switch x and y

• Change to logarithmic form

Tags

CCSS.HSF-BF.B.4A

Log with a base "e" (log_e) is the same thing as...

• "e"
• Natural Logarithm (LN)
• Common Logarithm (Log)
• Natural Log, base "e"
  LN_e

Tags

CCSS.HSF.BF.B.5

Find the inverse of $y=\ln\left(x+3\right)$ 

•  $y=e^x-3$ 

•  $y=e^{x-3}$ 

•  $y=e^x+3$ 

•  $y=e^{x+3}$ 

Tags

CCSS.HSF-BF.B.4A

 $Find\ the\ inverse\ of\ :\ y=\log_9x+4$ 
HINT: isolate the logarithm first.

•  $y=9^x+4$ 

•  $y=9^x-4$ 

•  $y=9^{\left(x-4\right)}$ 

•  $y=9^{\left(x+4\right)}$ 

Tags

CCSS.HSF-BF.B.4A

 $\log(x)$ is the same thing as...

•  $\ln x$ 

•  $\log_{10}x$ 

•  $\log_ex$ 

•  $\log_x10$ 

Simplify: $e^{\ln40\ }$ 

• 40

• -40

• e

• ln

Tags

CCSS.HSF.BF.B.5