Unit 9 Test

Rewrite the logarithm in exponential form:
 $\log_yx=10$  

•  $y^{10}=x$  

•  $x^{10}=y$  

•  $10^y=x$  

•  $y^x=10$  

Tags

CCSS.HSF.BF.B.5

log15=x

• $1^x=15$

• $0^x=15$

• $15^x$

• $10^x=15$

Tags

CCSS.HSF.BF.B.5

Write the following logarithm as an exponential:
 $\ln\left(5\right)=x$  

•  $5^x$  

•  $e^x=5$  

•  $e^5=x$  

•  $x^5=2.71$  

Tags

CCSS.HSF.BF.B.5

Solve $2^x=13$  
Round your answer to the nearest 100th

• 1.11

• 0.27

• 3.70

• 3.60

Tags

CCSS.HSF.LE.A.4

Solve $\frac{5^x}{3}=2$  
Round to the nearest 100th

• 1.11

• 0.79

• 0.90

• 1.28

Tags

CCSS.HSF.LE.A.4

Expand.

• 1/3 log x + log y + log z
• 1/3 log x + 1/3 log y + 1/3 log z
• 1/3 log x - 1/3 log y - 1/3 log z
• 3 log x + 3 log y + 3 log z

Expand.

• log x + 5 log y
• 5 log x + 5 log y
• 5 log x - log y
• log x - 5 log y

Condense to a single logarithm.

• ln x⁴/ y
• ln xy⁴
• ln x/ y⁴
• ln x⁴/ y⁴

Condense.

• log₂x²y¹⁰
• log₂x²+log₂y¹⁰
• log₂x²/y¹⁰
• log₂10xy

Evaluate.

• -2
• 2
• 6
• -6