glennhardenjr glennhardenjr

02-08-2017
Mathematics

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Write an equation in the form y = mx + b for the line which contains the points (8, 25) and (1, 4).

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choixongdong choixongdong

02-08-2017

slope = (25-4)/(8-1) = 21/7 = 3

y = mx + b
4 = 3(1) + b
b = 1

equation
y = 3x + 1

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