Persamaan Dari 5x+y=-7 Dan y2=-4x

5x + y = -7 ---> y = -7 - 5x
y² = -4x
(-7 - 5x)² = -4x
25x² + 70x + 4x + 49 = 0
25x² + 74x + 49 = 0
(25x + 49)(x + 1) = 0
x = -49/25 atau x = -1

Utk x = -1
y = -7 - 5x = -7 + 5 = -2

Utk x = -49/25
y = -7 + 49/5 = 14/5

HP = {(-1,-2) , (-49/25,14/5)}