Finding Logarithms

Solve for x:
log_x 25 = 2

• 5

• -5

• 1/5

• -1/5

Logarithmic functions are the inverse of...

• Linear Functions

• Exponential Functions 

• Quadratic Functions 

• Polynomial Functions 

Evaluate the following logarithm:

log₃27

• 3

• 2

• -3

• ¹/₃

Evaluate the following logarithm:

log₁₂1

• 1

• 0

• -1

• ¹/₂

Rewrite in exponential form:
ln(2) = x

• 2^x = 10

• 10² = x

• e^x = 2

• e² = x

Rewrite 3⁴ = 81 in logarithmic form.

• log₃4 = 81

• log₈₁3 = 4

• log₃81 = 4

• log₄81 = 3

Write in exponential form

log₂32 = 5

• 2^-5 = 32

• 2³² = 5

• 2⁵ = 32

• 32⁵ = 2

Graph

• A

• B

• C

• D

What is the equation of the asymptote?

• x = -3

• x=5

• y= -3

• y=5

Now that you've completed the quizizz, please check any/all skills you still feel you need to work on in this unit:

• Switching between exponential and log forms

• Finding the value of a log (by hand or in the calculator)

• Graphing a logarithm

• Domain and Range of the Graphs

• Review stuff from exponentials (the equations with the variables)