how do you write a point-slope form equation?

Question

Such as, passes through (0,1) and (2,5)

Answer 1

Slope of a line , M = Y – Y1 /
(X – X1)
In this problem, M = 5-1 /
(2-0)
M = 4/2 = 2
Using one point (0,1) into our formula M = Y – Y1 /
(X – X1)
M = Y – 1 /
(X – 0)
M (X – 0) = Y -1
Y = MX + 1, M=2
Y = 2X + 1