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29-12-2018
Mathematics

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Find the x value so that the line through the points (x,-9) and (0,1) has a slope of -4

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ahmadhas ahmadhas

29-12-2018

Find x in equation.
M = -4
[tex]y = m(x) + b \\ 1 = 0 + b \\ b = 1[/tex]
[tex]y = m(x) + b \\ - 9 = ( - 4)(x) + 1 \\ - 10 = - 4x \\ x = \frac{5}{2} [/tex]

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