the line y=mx+c passes through (2,5) and (4,13). find m and c.

Question

the line y=mx+c passes through (2,5) and (4,13). find m and c.

Answer 1

(2,5) and (4,13)

y - y₁ = y₂ - y₁

x - x₁    x₂ - x₁

 

 y - 5  = 13 - 5 = 8/2 = 4 x - 2     4 - 2

y - 5 = 4x - 8

y = 4x - 3

m = 4, c = -3