Question

f the points (-4, 1) and (2, 1) are the endpoints of a diameter of a circle, where is the center? A) (-7, 1) B) (-1, 1) C) (1, -1) D) (5, 1)

Answer 1

B

Explanation:

The centre is at the midpoint of the endpoints of the diameter.

Using the midpoint formula, then

centre = (
`(-4+2)/(2)`,
`(1+1)/(2)` ) = (- 1, 1 ) → B