Exp & Logs Test Review

Expand the expression: log₂5xy

• log₂5 + log₂xy

• log₂5 + log₂x + log₂y

• log10xy

• xylog₂5

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSF.BF.B.5

Condense: log₆x - log₆y

• log₆y - log₆x

• log₆x + log₆y

• log₆x/y

• log₆y/x

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSF.IF.C.8

Solve for x: log₃(x+4) = log₃(5x)

• x=5

• x=4

• x=1

• x=3

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

CCSS.HSF.BF.B.5

log_x1000=3

• 1

• 10

• 30

• 3

Tags

CCSS.HSF.BF.B.5

log₈₁x = 3/4

• 2

• 3

• 27

• 81

Tags

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

This question is SLIGHTLY a challenge but you should all be able to do it!! 
log x - log 8 = 3

• x = 1000
• x = 800
• x = 8000
• x = 100

Tags

CCSS.HSA.CED.A.1

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

Rewrite as an exponential: log₂8 = 3

• 3² = 8

• 2³ = 8

• 2⁸ = 3

• 8³ = 2

Tags

CCSS.HSF.BF.B.5

Rewrite as a log: x = 11^y

• log₁₁(y) = x

• log_y(11) = x

• log₁₁(x) = y

• log_x(y) = 11

Tags

CCSS.HSF.BF.B.5

A chemical substance has a half-life of 3 days. If you start with 90 grams of the substance, how much will be left after 13 days? Write an equation to help you find your answer.

• about 4.487 grams

• about 0.011 grams

• about 0.9924 grams

• about 4.221 grams

Tags

CCSS.HSF.LE.A.4

Is the pictured graph growth, decay, or linear or none?  

• Growth
• Decay
• Linear
• None

Tags

CCSS.HSF-IF.C.7E