Practice: Intro to Log Functions

Logarithmic functions are the inverse of...

• Linear Functions
• Exponential Functions 
• Quadratic Functions 
• Polynomial Functions 

Which is the picture of an log function?

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What is the base?

• 1
• 5
• 10
• 3

What is the asymptote of y = log₂(x)?

• y = 0

• x = 0

What is the asymptote of y = log₂(x - 3) ?

• y = 0

• y = 3

• x = 0

• x = 3

What is the domain of log(x)?

• (-∞, ∞)

• [0, ∞)

• (0, ∞)

• (∞, -∞)

Which graph is logarithmic

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Identify the domain of the graph.

• $\left(-1,\infty\right)$

• $\left[-1,\infty\right)$
  

• $\left(-\infty,\infty\right)$
  

log(4x)

• log4-logx

• log4+logx

• 4logx

• xlog4

 $\log\left(\frac{x}{y}\right)$  

• logx+logy

• xlogy

• log(x-y)

• logx-logy