jimmyof2100 jimmyof2100

19-10-2017
Mathematics

contestada

The line passes through the points ( 7, -7) and ( 6, -5) a. y = -2x + 7 c. y = -2x - 7 b. y = 2x - 21 d. y = 2x - 7

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choixongdong choixongdong

19-10-2017

slope = (-5+7)/(6 - 7) = -2

y = mx + b
b = y - mx
b = -7 - (-2)(7)
b = -7 + 14
b = 7

equation
y = -2x + 7

answer
a. y = -2x + 7

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