Log Equations

• 5
• 13
• 84
• -20

Tags

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

CCSS.HSA.CED.A.1

• A
• B
• C
• D

Tags

CCSS.HSF.BF.B.5

Write the equation in exponential form.

log₂(x - 4) = 6

• x - 4 = 6²

• 6₂ = x - 4

• 2^(x-4) = 6

• 2⁶ = x - 4

Tags

CCSS.HSF.BF.B.5

log₃(4x + 8) - 7 = -3

Next step?

• Add 7 to both sides.

• 3^-3 = 4x + 8

• 4x + 8 = 10

• 4x + 1 = -3

Tags

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

CCSS.HSA.REI.A.1

Rewrite in logarithmic form.

8^m-7 = 92

• 8⁹² = m - 7

• 92 = 8(m - 7)

• log₈92 = m - 7

• log_(m-7)92 = 8

Tags

CCSS.HSF.BF.B.5

log₂(x+3)=4

• 16

• 13

• 3

• 10

Tags

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

Rewrite 3⁴ = 81 in logarithmic form.

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

Tags

CCSS.HSF.BF.B.5

Condense

• A
• B
• C
• D

Tags

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

Solve

• 46/5

• 5/46

• -46/5

• -5/46

Tags

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

log(x+6) = 1

• 4
• 4.222
• -5
• -9.550

Tags

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

CCSS.HSA.REI.A.1

CCSS.HSA.CED.A.1