SOLUTION: Write an equation of the line passing through the points (-3,4) and (5,-8). Write the result equation in slope-intercept form.

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Question 910077: Write an equation of the line passing through the points (-3,4) and (5,-8). Write the result equation in slope-intercept form.
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
Solved by pluggable solver: Find the equation of line going through points
hahaWe are trying to find equation of form y=ax+b, where a is slope, and b is intercept, which passes through points (x1, y1) = (-3, 4) and (x2, y2) = (5, -8).
Slope a is a+=+%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29+=+%28-8-4%29%2F%285--3%29+=+-1.5.
Intercept is found from equation a%2Ax%5B1%5D%2Bb+=+y%5B1%5D, or -1.5%2A-3+%2Bb+=+-0.5. From that,
intercept b is b=y%5B1%5D-a%2Ax%5B1%5D, or b=4--1.5%2A-3+=+-0.5.

y=(-1.5)x + (-0.5)

Your graph:




or
y=-1.5x+-0.5