A line passes through (4, 5) and (8, 9). Which equation best represents the line?

Mathematics · High School · Tue Nov 03 2020

Answered on

Formula Used :

m = (y2 - y1)/(x2 - x1)

Lines are passing through (4,5) and (8,9)

m = (9 - 5)/(8 - 4)

m = 4/4

m = 1

So, slope is 1. 

Now, line's equation:

(y - y1) = m(x - x1)

(y - 5) = 1(x - 4)

y - 5 = x - 4

x -y + 1 = 0

 

Thus, equation of line is x - y + 1 = 0