85. -5-4 -3 -2 -1 Fine grap 87. 2x -2 (0, b. 2.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter1: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 55RE
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Question

Write the equation of each circle in standard form. The coordinates of the center and the radius for each circle are integer 

85.
-5-4 -3 -2
-1
Fine
grap
87.
2x
-2
(0,
b.
2.
Transcribed Image Text:85. -5-4 -3 -2 -1 Fine grap 87. 2x -2 (0, b. 2.
Expert Solution
Step 1

Consider the circle one with center coordinates (h,k) = (-2, 1) and find the radius of the circle by distance formula where, (x1, y1) = (-2, 1) and (x2, y2) is any point on the circle.

Algebra homework question answer, step 1, image 1
Step 2

Find the equation of circle in standard form.

Algebra homework question answer, step 2, image 1
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