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In $11-19,$ write the equation of each circle.Graph cannot copy

$(x+1)^{2}+(y+1)^{2}=13$

Algebra

Chapter 4

RELATIONS AND FUNCTIONS

Section 9

Circles

An Introduction to Geometry

Functions

Linear Functions

Polynomials

Missouri State University

Baylor University

Idaho State University

Lectures

01:32

In mathematics, the absolu…

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00:56

In $11-19,$ write the equa…

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03:12

Write the equation of each…

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all right, we're as to find the equation of this circle in the picture, and so that for me, the Senate Radius form of the equation of circles Xmas Age Square, post y minus K squared equals R squared, where h is HK is the center of the circle of R is the radius. The center of the circle is given to be negative. One negative one, and we are not given the radius. But we are given a point on the circle to one, and the radius would be the distance from that point on the circle to the center of the circle so we can use the distance formula. So the square root of the difference of your exports to minus negative one squared, plus the difference of your Y coordinates one minus negative. One squared and we'll square root that little simplifying tu minus negative one is to close one or three squared, plus one minus negative. One is one plus one or two squared. Ah, and then we'll have squared of nine plus four, which is 13. So the radius is equal to the square to 13 so into the formula X plus one squared plus why Plus one squared equals What the square root of 13 squared The square to 13 squared is just 13. So that is our final answer.

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