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16-12-2016
Mathematics

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Write an equation in standard form parallel to 7x-4y=8 and contains the point (-4,4)

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mathssydney mathssydney

16-12-2016

original
7x-4y = 8
4y = 7x - 8
y = 7x/4 - 1/2

parallel line
y = 7x/4 + b
replace (-4, 4)
4 = 7x/4 -4
32 = 7x
x = 32/7

the equation (parallel)

y = 7x/4 - 32/7 - this is your answer

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