Answer:
Q = (9, 4 )
Explanation:
Use the midpoint formula and equate to the coordinates of the midpoint.
M = (
) , (
)
let the coordinates of Q = (x, y ) , R = (- 7, 0 ) , then
= 1 ( multiply both sides by 2 )
x - 7 = 2 ( add 7 to both sides )
x = 9
and
= 2 ( multiply both sides by 2 )
y = 4
Thus Q = (9, 4 )