-
f(x)
- Domain
- Range
-
Symmetry
-
Even Function
-
Symmetric about the y-axis
- f(-x)=f(x)
-
Odd Function
-
Symmetric about the origin
- f(-x)=-f(x)
-
Horizontal Asymptotes
- Take Limit of f(x) as x-> Infinity/-Infinity
-
Vertical Asymptotes
-
Find out where f(x) is undefined
- Take a limit as x approaches the undefined number
-
Holes (discontinutities)
- Factor f(x) and see if terms cancel out on the numerator and denominator
-
x-intercepts
- Factor f(x) and solve f(x)=0
-
y-intercept
- Set x=0 in f(x) and solve for y
-
f'(x)
-
Find Critical Numbers of f'(x)
-
Make a Chart
-
Increasing Intervals
- f'(x)>0
-
Decreasing Intervals
- f'(x)<0
-
The First Derivative Test
- f'(x) changes sign from + to -
- Local Max
- f'(x) changes sign from - to +
- Local Min
-
f''(x)
-
The Second Derivative Test
-
f'(c)=0 or f'(c) is UND
-
f''(c)>0
- Local Min at c
-
f''(c)<0
- Local Max at c
-
f''(c)=0
- Can't say anything
- Use the First Derivative Test to check to see if Local Max/Min at c
-
Find Critical Numbers of f''(x)
-
Make a Chart
-
Concave Up Interval
- f''(x)>0
-
Concave Down Interval
- f''(x)<0
-
Points of Inflection
- f'' changes sign