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04-02-2021
Mathematics

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How to find slope and y-intercept with (7,9)(45,99)

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04-02-2021

1. Slope: (Yb - Ya) / (Xb - Xa)
= (99 - 9) / (45 - 7)
= 90/38

2. Y-Intercept
Y = mx + b
9 = (90/38) * 7 + b
9 = (90/38) * (7/1) + b
9 = 630/38 + b

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