meaguirre2 meaguirre2

03-08-2017
Mathematics

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Write an Equation for line through (4,9), m=-9

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sergibcnusa sergibcnusa

03-08-2017

Use slope-point formula:

y - 9 = -9*(x-4)

y = -9x + 45,

always check it again:

x=4, y = -36+45 = 9, fine

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