Write an equation for the line that passes through (1, 4) and (0, 8)
Mathematics · Middle School · Thu Feb 04 2021
Answered on
Given the points:
(1, 4)
(0, 8)
x1= 1
x2 = 0
y1 = 4
y2= -8
Write the equation of the line.
The equation of the line can be written in point-slope form:
Point-slope form:
y - y1 =m(x -x1)
Solution:
Before we can write in point-slope form, we must first find the slope of the line, we can find the slope by using the slope formula.
m = y2 -y1 /x2 -x1
m= (8 -4)/(0 - 1)
m = 4/-1
m= -4
Substitute the given values of x1, m and y1 to the formula for the point-slope form.
y - 4 = 4(x -1)
Final answer:
y - 4 = 4(x -1)