## Intermediate Algebra for College Students (7th Edition)

Published by Pearson

# Chapter 10 - Section 10.1 - Distance and Midpoint Formulas; Circles - Exercise Set: 31

#### Answer

$x^2+y^2=49$

#### Work Step by Step

RECALL: The standard form of the equation of a circle centered at $(0, 0)$ with a radius of $r$ units is: $x^2 + y^2 = r^2$ Use the standard form above where $r=7$ to obtain: $x^2 + y^2 = 7^2 \\x^2+y^2=49$

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