Question

Find the standard form for the equation of a circle (x−h)^2+(y−k)^2=r^2 with a diameter that has endpoints (−9,−10) and (0,−9). what are h,k, and r?

Answer 1

Find the distance between the two points to get the diameter, then find the radius.

Answer 2

Find the midpoint between the two points, and that should be the center.

Answer 3

r is the radius, (h, k) is the center

Answer 4

so the center is (-4.5,-9.5). how do i find radius?

Answer 5

Radius is distance from that center to one of the endpoints.

Answer 6

Can you find the distance between two points?

Answer 7

If so you can find the length of the diameter.

Answer 8

im confused. do i add the center points and divide by 2

Answer 9

You can find the distance between the center and an endpoint

Answer 10

will you show me how pls

Answer 11

im literally confused