Tentukan persamaan garis yang melalui titik (1,-3)dan titik potong garis y=2x dengan y=5x-4

y = y
5x - 4 = 2x
5x - 2x = 4
3x = 4
x = 4/3
y = 2(4/3) = 8/3
(x1,x2) = (1,-3)
(x2,y2) = (4/3 , 8/3)
m = (4/3 - (-3)) / (8/3 - 1)
m = (13/3) / (5/3)
m = 13/3 × 3/5 = 13/5
y - (-3) = 13/5(x - 1)
y + 3 = 13/5(x - 1)
kalikan 5
5y + 15 = 13(x - 1)
5y + 15 = 13x - 13
5y = 13x - 28