Question

Tentukan persamaan garis yg melalui titik titik berikut A ( 1, -2 ) B ( -3, 5 )

Answer 1

Y-y1/y2-y1 = x-x1/x2-x1 y-(-2)/5-(-2) = x-1/-3-1 y+2/5+2 = x-1/-3-1 y+2/7 = x-1/-4 -4(y+2) = 7(x-1) -4y-8=7x-7 -4y=7x-7+8 -4y=7x+1