SOLUTION: A line with 2 points: (0,18),(9,144)

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Question 121522: A line with 2 points: (0,18),(9,144)
Answer by MathLover1(20855) 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) = (0, 18) and (x2, y2) = (9, 144).
Slope a is a+=+%28y%5B2%5D-y%5B1%5D%29%2F%28x%5B2%5D-x%5B1%5D%29+=+%28144-18%29%2F%289-0%29+=+14.
Intercept is found from equation a%2Ax%5B1%5D%2Bb+=+y%5B1%5D, or 14%2A0+%2Bb+=+18. From that,
intercept b is b=y%5B1%5D-a%2Ax%5B1%5D, or b=18-14%2A0+=+18.

y=(14)x + (18)

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