Ch. 3 Practice Test - Log/LN/Exponents

Solve:
_{log (4x − 5) = log (2x − 1)} 

• 0
• 1
• 2
• 3

Tags

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

CCSS.HSA.REI.B.3

log₂(x + 5) = 3

• 3
• 4
• 5
• 6

Tags

CCSS.HSF.BF.B.5

log (x - 1)  - log (x - 2)  = log 5

• 7
• 4/9
• 9/4
• 1/7

Tags

CCSS.HSF.BF.B.5

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

log₃4x = 2

• x=4/9

• x=9/4

• x=3/2

• x=2/3

Tags

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

log x = -3

• x=10
• x=.001
• x=3
  x=.01
• 3

Tags

CCSS.HSF.BF.B.5

ln(4-v) = ln(3v)

• 1
• -2
• No Solution
• -5

Tags

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

CCSS.HSA.REI.A.1

CCSS.HSA.REI.A.2

Solve:
log₄x² - log₄(x-1) = 1

• 4
• 3
• 2
• 1

Tags

CCSS.HSF.BF.B.5

CCSS.HSA.CED.A.1

log₆(2x + 3) = 3

• x = 106.5
• x = 100
• x = 16
• x = 50

Tags

CCSS.HSF.BF.B.5

log₈(1/2) = x

• -1/3

• 1/3

• 1/2

• -1/2

Tags

CCSS.HSF.BF.B.5

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