PreCalculus Class Notes: EL – 6 Log Graphs
Identify the domain, range, asymptotes, intercepts and sketch the following. (Use transformations, too.)
To find:
Domain
Range
y-intercept
x-intercept
Vertical Asymptote
Horizontal asymptote
1. f(x) = log2(x + 4)
Domain
y
Vertical Asymptote
y-intercept
x
x-intercept
2. y = ln(2x + 3)
Domain
y
Vertical Asymptote
y-intercept
x-intercept
x
3. y = log(4 – 2x)
Domain
y
Vertical Asymptote
y-intercept
x
x-intercept
x

4. y = log3  − 3  +2
2 
Domain
y
Vertical Asymptote
y-intercept
x
x-intercept