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1001 Algebra II Practice Problems For Dummies
book

1001 Algebra II Practice Problems For Dummies

by Mary Jane Sterling
June 2013
Beginner content levelBeginner
504 pages
9h 8m
English
For Dummies
Content preview from 1001 Algebra II Practice Problems For Dummies

Chapter 6

Quadratic Functions and Relations

A quadratic function is created from a quadratic expression — an expression with a variable raised to the second power. The graphs of quadratic functions look like U-shaped curves that open upward or downward. A quadratic relation may open left or right. The key to graphing a quadratic function or relation is to find its vertex, determine which way it opens, and find a point or two that can be used to sketch the curve.

The Problems You’ll Work On

In this chapter, you’ll work with quadratic curves in the following ways:

check.png Determining the vertex and intercepts from the function rule

check.png Rewriting quadratic functions in the standard form for a parabola

check.png Sketching the graphs of parabolas

check.png Using quadratic functions and their properties to solve applications

What to Watch Out For

Don’t let common mistakes trip you up; watch for the following when working with quadratic curves:

check.png Finding the opposite of the coefficient of b when solving for the coordinates ...

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Publisher Resources

ISBN: 9781118446614Publisher Support