Question

The endpoints of one diagonal of a The The endpoints of one diagonal of a rhombus are (0, -8) and (8, -4). If the coordinates of the 3rd vertex are (1, 0), what are the coordinates of the 4th vertex?

(7, -12)
(7, -8)
(-8, -4)
(-4, -12)

Answer 1

sketch graph
from y = -8 must go down 4
so at y = -12
from x = 0 must go right 7
so at x = 7
so
(7,-12)