SOLUTION: Find an equation of the line that passes through the points (1, 4) and ( -7, -4)

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Question 733708: Find an equation of the line that passes through the points (1, 4) and ( -7, -4)
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
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) = (1, 4) and (x2, y2) = (-7, -4).
Slope a is a+=+%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29+=+%28-4-4%29%2F%28-7-1%29+=+1.
Intercept is found from equation a%2Ax%5B1%5D%2Bb+=+y%5B1%5D, or 1%2A1+%2Bb+=+3. From that,
intercept b is b=y%5B1%5D-a%2Ax%5B1%5D, or b=4-1%2A1+=+3.

y=(1)x + (3)

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