Question

Persamaan garis yang melalui titik R(1,5) dan S(4,11) adalah..

Answer 1

Pake rumus
y-y1 / y2-y1 = x-x1/x2-x1
y-5 / 11-5 = x-1 / 4-1
y-5 / 6 = x-1 / 3 (kali silang)
3(y-5) = 6(x-1)
3y-15 = 6x - 6
6x-3y-6+15=0
6x-3y+9=0 (dibagi 3)
2x-y+3=0