Limits: A Graphing Approach: Precalculus With
Find x-intercepts and determine "multiplicity" (does the graph cross or bounce?). Asymptotes: Vertical: Where the denominator equals zero.
Use the Leading Coefficient Test to see where the graph goes as Precalculus with Limits: A Graphing Approach
Always check for "illegal" math (denominators of zero or negatives in square roots). not replace them.
Use a graphing calculator to verify your hand-drawn sketches, not replace them. Precalculus with Limits: A Graphing Approach