A line passes through (4, 5) and (8, 9). Which equation best represents the line?
Mathematics · High School · Tue Nov 03 2020
llm
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