Question

The diameter of a circle has endpoints whose coordinates are R(-2, 2) and S(4, 2).

The radius of the circle has length _____.

Answer 1

A.3
B.6
C.9

Answer 2

@terenzreignz

Answer 3

You can graph this or make it into an equation.
Either way is up to you.
Diameter: \[ 4-(-2)=6\]

Half the diameter is the radius so \[6\div2=3\]

Answer 4

@Shianne95
Do you understand?

Answer 5

so you are able to use either end point to find the diameter

Answer 6

You use x.
(x,y)
R(-2, 2) and S(4, 2).
4--2 = 6.