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  • 25-01-2018
  • Mathematics
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MATH PLEASE HELP!!!
14

MATH PLEASE HELP 14 class=

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choixongdong
choixongdong choixongdong
  • 25-01-2018
Given ΔABC with A(-6, -1), B(3, 7), and C(4, -6)
Since it is an altitude and pass thru B, t
hen it is perpendicular to AC. 

so slope(AC) = (-1 +6)/(-6 - 4) = -5/10 = -1/2

perpendicular lines, slope is opposite and reciprocal so slope = 2

passes through B(3, 7)
y - 7 = 2(x - 3)
y - 7 = 2x - 6
y = 2x + 1

equation in slope intercept form:
y = 2x + 1
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