Question

The endpoints of the diameter of a circle are (-3,2) and (5,-6). Find the center and radius of the circle. Write the general equation of this circle.

Answer 1

Get midpoint, thus radius and write down equation.

Answer 2

i got my center but the radius not coming out right.

Answer 3

The radius u have to calculate as the distance between midpoint and one of the given points using the "distance formula"

Answer 4

its not giving me the right answer.

Answer 5

What formula u are using?

Answer 6

\[d= \sqrt{(x _{2}-x _{1}}) + (y _{2}-y _{1})\]

Answer 7

you have to square (x2-x1) and (y2-y1)

Answer 8

yea i know 4got to put it.

Answer 9

but i did that and my radius not the same as the back of my book.