## Algebra: A Combined Approach (4th Edition)

Published by Pearson

# Chapter 13 - Section 13.1 - The Parabola and the Circle - Vocabulary and Readiness Check: 10

#### Answer

The parabola opens to the right.

#### Work Step by Step

The graphing form of a "sleeping" or sideways parabola is: $x = a(y-k)² + h$ if the coefficient of a is negative, it opens to the left, if it is positive, it opens to the right. The coefficient of a is a positive 1, so it opens to the right.

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