Always check for "illegal" math (denominators of zero or negatives in square roots).
Use a graphing calculator to verify your hand-drawn sketches, not replace them. Precalculus with Limits: A Graphing Approach
Master Precalculus with Limits: A Graphing Approach This guide focuses on mastering functions, trigonometry, and the introduction to calculus through a visual and graphical lens. 1. Master the Library of Functions Always check for "illegal" math (denominators of zero
The "Limit" describes the behavior of a function as it approaches a specific point. Precalculus with Limits: A Graphing Approach
If a graph looks weird, plot 3-5 specific points to anchor it.
Use the Leading Coefficient Test to see where the graph goes as
Compare the degrees of the numerator and denominator. 4. Trigonometry via the Unit Circle Coordinates: Remember