anonymous
  • anonymous
write the equation of the line through each point. use slope intercept form. through (7,1) and perpendicular to y=-x+3.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
y = -x + 3 do you know what the slope is in this equation ?
anonymous
  • anonymous
no.
anonymous
  • anonymous
y = mx + b....m is your slope, therefore the slope to that equation is -1. Understand so far ?

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anonymous
  • anonymous
ok got it.
anonymous
  • anonymous
We are looking for a perpendicular line, therefore the slope will change. We want the negative reciprocal of slope -1. That just means " flip " the slope and change the sign. Therefore, the slope we will need will be 1. Understand ?
anonymous
  • anonymous
yes ok.
anonymous
  • anonymous
We will now use point slope formula : y - y1 = m(x - x1) using slope(m) = 1 and (7,1) x1 = 7 and y1 = 1 so lets sub our info into the formula.. y - 7 = 1(x - 1) you still with me ?
anonymous
  • anonymous
yes.
anonymous
  • anonymous
y - 7 = 1(x - 1) y - 7 = x - 1 y = x - 1 + 7 y = x + 6 any questions ?
anonymous
  • anonymous
thx and i have no questions.
anonymous
  • anonymous
if you were looking for a parallel line, the slope would have stayed the same. But perpendicular is negative reciprocal of the slope. Remember this.
anonymous
  • anonymous
ok thx again.
anonymous
  • anonymous
glad to help :)

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