SOLUTION: Write the equation of a line parallel to the given line and passing through the given point. y = -x + 7; (-7,-1) Write the equation of a line perpendicular to the given line and

Algebra ->  Equations -> SOLUTION: Write the equation of a line parallel to the given line and passing through the given point. y = -x + 7; (-7,-1) Write the equation of a line perpendicular to the given line and      Log On


   



Question 1098412: Write the equation of a line parallel to the given line and passing through the given point. y = -x + 7; (-7,-1)
Write the equation of a line perpendicular to the given line and passing through the given point. y = -x + 7; (-7,-1)

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
point slope formula y-y1=m(x-x1), m slope, (x1, y1) point
parallel is y+1=-1(x+7), watch the signs carefully
y+1=-x-7
y=-x-8
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perpendicular has negative reciprocal of slope, which would be +1
y+1=(x+7)
y=x+6
graph%28300%2C300%2C-10%2C10%2C-10%2C10%2C-x%2B7%2C-x-8%2Cx%2B6%29