Question

Nomor 19 pakai cara tolong dibantu ya

Answer 1

P (2,2)
Q (-2,4)

y - y1 : y2 - y1 = x - x1 : x2 - x1
y - 2 : 4-2 = x - 2 : (-2-2)
y - 2 : 2 = x - 2 : (-4)
y - 2 = x - 2 : (-2)
-2y + 4 = x - 2
2y = -x + 6
y = -1/2 x + 3

gradien m = -1/2

m1.m2 = -1
-1/2. m2 = -1
m2 = 2