Unit 7 Day 2 Log Practice

Find the inverse of y=9^x

• y=log_x9

• y=log₁₀9

• x=log_y9

• y=log₉x

How are exponentials and logarithms related?

• They're cousins
• They're inverses
• They're not related
• They're reciprocals

When you want to find the inverse of a function, you first

• Solve for y

• Change to exponential form

• Switch x and y

• Change to logarithmic form

Log with a base "e" (log_e) is the same thing as...

• "e"
• Natural Logarithm (LN)
• Common Logarithm (Log)
• Natural Log, base "e"
  LN_e

Find the inverse of the function f(x)=5^(x+2)

• f^-1(x)=log₅(x-2)
• f^-1(x)=log₅(x)-2
• f^-1(x)=log₅(x)+2
• f^-1(x)=log₅(x+2)

Rewrite log_vn = a in exponential form.

• v^a = n
• n^a = v
• vⁿ = a
• aⁿ = v