Tentukan gradien A(2,1) B(6,6) K(-2,-2) L(-6,-3)a. tentukan garis A Bb. tentukan garis K L
Jawab:
Tentukan gradien A(2,1) B(6,6) K(-2,-2) L(-6,-3)
a) gradien AB = m = (6- 1)/(6-2) = 5/4
garis A B –> y = 5/4 (x – 2 ) + 1
y = 5/4 x – 5/2 + 1
y = 5/4 x – 3/2
b. gradiemn K L = m = (- 3 + 2) / (- 6 + 2) = -1/-4 = 1/4
garis KL y= 1/4 (x +2) – 2
y = 1/4 x + 1/2 – 2
y = 1/4 x – 3/2