Unit 7B Logarithms Test Review Part 3

Rewrite log₂8 = 3 in exponential form.

• 2⁸ = 3
• 2³ = 8
• 3² = 8
• 8³ = 2

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CCSS.HSF.BF.B.5

Rewrite 3⁴ = 81 in logarithmic form.

• log₃4 = 81
• log₈₁3 = 4
• log₃81 = 4
• log₄81 = 3

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CCSS.HSF.BF.B.5

Solve for x.
log₅ 1 = x

• 0
• -1
• 2
• 1

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CCSS.HSF.BF.B.5

Write in exponential form.
log₂(¹/₈) = -3

• 2^-3 = ¹/₈
• 2^1/8 = -3
• -3² = ¹/₈
• -3^1/8 = 2

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CCSS.HSF.BF.B.5

Rewrite log_vn = a in exponential form.

• v^a = n
• n^a = v
• v^n = a
• a^n = v

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CCSS.HSF.BF.B.5

What is the base of the log?

log₃81=4

• 81

• 3

• 4

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CCSS.HSF.BF.B.5

log 1000 =

• 1/10

• 10

• 1/3

• 3

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CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

log ₂₅ (1/125)

• -1/5

• 5

• -3/2

• 2/3

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CCSS.HSF.BF.B.5

The common logarithm has what base?

• 10
• 0
• e
• -e

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CCSS.HSF.BF.B.5

Where is the asymptote?

• x = 1
• y = 1
• x = -1
• y = -1

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CCSS.HSF-IF.C.7E