SOLUTION: Write an equation in slope-intercept form of the line that passes through the points (-4,2) and (1,-1).

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Question 700973: Write an equation in slope-intercept form of the line that passes through the points (-4,2) and (1,-1).
Answer by MathLover1(20850) About Me  (Show Source):
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Solved by pluggable solver: FIND EQUATION of straight line given 2 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) = (-4, 2) and (x2, y2) = (1, -1).
Slope a is a+=+%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29+=+%28-1-2%29%2F%281--4%29+=+-0.6.
Intercept is found from equation a%2Ax%5B1%5D%2Bb+=+y%5B1%5D, or -0.6%2A-4+%2Bb+=+-0.4. From that,
intercept b is b=y%5B1%5D-a%2Ax%5B1%5D, or b=2--0.6%2A-4+=+-0.4.

y=(-0.6)x + (-0.4)

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