One endpoint of a line segment is (4,3) and its midpoint is (8,19). What is the sum of the coordinates of the other endpoint?
Mid-point rule
(4 + x) / 2 = 8 (3 + y) / 2 = 19
4 + x = 8 * 2 3 + y = 19 * 2
4 + x =16 3+ y = 38
x = 16 - 4 y = 38 - 3
x = 12 y = 35
Sum = 35 + 12 =
47
