Write an equation of the line that passes through the point (3,40 and has a slope of -4
Mathematics · High School · Tue Nov 03 2020
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Given:
Line passes through the point
(3, 40)
x = 3
y = 40
Slope of the line = -4
Determine the equation of the line.
Solution:
We can write the line in slope intercept form:
y = mx + b
In order to do so, we must equate the values to the equation of the slope of a line which is:
(y - y1) = m(x - x1)
y -40 = -4(x - 3)
y - 40 = -4x + 12
y = -4x + 12 +40
y = -4x + 52
The equation of the line is y = -4x + 52