7.1 Writing logarithms

Evaluate:

log₄1

• 1

• 0

• 4

• undefined

Rewrite in exponential form:

log₂8 = 3

• 2⁸ = 3

• 2³ = 8

• 3² = 8

• 8³ = 2

Evaluate:

log₅25

• 2

• 5

• 125

Rewrite in logarithmic form:

3⁴ = 81

• log₃4 = 81

• log₈₁3 = 4

• log₃81 = 4

• log₄81 = 3

The common logarithm has what base?

• 10
• 0
• e
• -e

Tags

CCSS.HSF.BF.B.5

Rewrite 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

Rewrite in exponential form:

log₃(9)=2

• 3⁹=2

• 3²=9

• x²=9

• 3^x=2

Rewrite in exponential form:

log(10,000)=4.

• e⁴=10,000

• 4^10,000=10

• 10⁴=10,000

• 0⁴=10

Tags

CCSS.HSF.BF.B.5

Rewrite in logarithmic form:

5² = 25

• log₅2 = 25

• log₂25 = 5

• log₂₅5 = 2

• log₅25 = 2

Rewrite in logarithmic form:

5³ = 125?

• log₅3 = 125

• log₃5 =125

• log₅125=3

• log₃125 =3