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08-09-2017
Mathematics

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Find an equation for the line which passes through (-1,4) and is perpendicular to the line containing (0,1) and (4,5)

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choixongdong choixongdong

08-09-2017

line containing (0,1) and (4,5)
slope = (5-1)/(4-0) = 4/4=1
perpendicular lines, so slope will be opposite and reciprocal
so slope = -1

passes through (-1,4)
y = mx + b
4 = -1(-1) + b
4 = 1 + b
b = 3

equation
y = -x + 3

hope it helps

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