Precalculus Logarithmic and Exponential Function Review

Write the expression as a single logarithm.   Then simplify if possible.
log₅3 + log₅6 + log₅9

• log₅69

• log₅56

• log₅162

• log₅98

What type of function is f(x)=2(1/7)^x ?

• Exponential Growth

• Linear

• Exponential Decay

• None of the Abovee

Tags

CCSS.HSF-IF.C.8B

Write in logarithmic form.
5² = 25

• log₅2 = 25

• log₂25 = 5

• log₂₅5 = 2

• log₅25 = 2

Tags

CCSS.HSF.BF.B.5

Write log₂ 0.25 = -2 in exponential form

• -2²  = 0.25

• -2^0.25  = 2

• 2^-2  = 0.25

• No correct answer

Tags

CCSS.HSF.BF.B.5

Rewrite 3⁴ = 81 in logarithmic form.

• log₃4 = 81

• log₈₁3 = 4

• log₃81 = 4

• log₄81 = 3

Tags

CCSS.HSF.BF.B.5

Evaluate:
log₄16

• 2

• 4

• 1/2

• -2

Evaluate log₅  20 to the third decimal place

• 0.537

• 2.996

• 1.301

• 1.861

Find the value for x to the third decimal place: 10^x =20

• 2

• 1.301

• 0.5

• No Correct Answer

Tags

CCSS.HSF.LE.A.4

log₄1 = 

• 0

• 1

• 4

• DNE

Tags

CCSS.HSF.BF.B.5

What is the domain?

• (-∞, ∞)

• (0, ∞)

• [1, ∞)

• (1, ∞)

Tags

CCSS.HSF-IF.C.7E