Logarithm Practice

• I hate logs. Nobody likes them.

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CCSS.HSF.BF.B.5

• 3 frogs sat on 4 logs and floated away from 81 dogs

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CCSS.HSF.BF.B.5

• 125

• 5

• 7

• 4

Write in logarithmic form.
2^-4 = ¹/₁₆

• log₂(¹/₁₆) = -4
• log_-4(¹/₁₆) = 2
• log _-4 2 = ¹/₁₆
• log₂(-4) = ¹/₁₆

Tags

CCSS.HSF.BF.B.5

Write in exponential form.
log₂32 = 5

• 2^-5 = 32
• 2³² = 5
• 2⁵ = 32
• 32⁵ = 2

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CCSS.HSF.BF.B.5

Solve for x
5^x = 17

• x = log₁₇5
• x = log 5 + log 17
• x = log₅17
• x = (log 5)/(log 17)

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CCSS.HSF.LE.A.4

Rewrite in exponential form:
ln(2) = x

• 2^x = 10
• 10² = x
• e^x = 2
• e² = x

Tags

CCSS.HSF.BF.B.5

Rewrite e^x = 9 using a logarithm

• ln x = 9

• ln 9 = x

• log_x e = 9

• log₉ x = e

Tags

CCSS.HSF.BF.B.5

Solve for x:
8^x+1= 3

• 0.528
• 0.893
• -0.472
• 1.893

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CCSS.7.EE.B.4A

Solve the equation for x.

• 32
• 25
• 1.66
• 512

Tags

CCSS.HSF.BF.B.5