Write an equation of the form y=mx for the pairs (0,0) and (1,4)

(0,0)(1,4)
slope = (4 - 0) / (1 - 0) = 4/1 = 4

y = mx + b
slope(m) = 4
(1,4)...x = 1 and y = 4
now sub and find b, the y int
4 = 4(1) + b
4 = 4 + b
4 - 4 = b
0 = b

ur equation is : y = 4x + 0 or just y = 4x