Question

If the endpoints of have the coordinates A(9, 8) and B(-1, -2), what is the midpoint of?

A. (5,3)

B. (4,5)

c. (5,5)

D. (4,3)

Answer 1

The answer is c that the correct answer

Answer 2

ANSWER

D. (4,3)

EXPLANATION

Let

$

(x_1,y_1)=A(9,8)$

and

$(x_2,y_2)=B(-1,-2)$

To find the midpoint, use the formula,

$( \frac{x_1+x_2}{2} , \frac{y_1+y_2}{2} )$

Substitutes the values to get,

$( \frac{9 - 1}{2} , \frac{8 - 2}{2} )$

Simplify

$( \frac{8}{2} , \frac{6}{2} )$

$( 4, 3)$

The correct choice is D.