SOLUTION: Find the equation of the line that contains the point P(2, 3) and is perpendicular to the graph of y =3/2x-1

Algebra ->  Linear-equations -> SOLUTION: Find the equation of the line that contains the point P(2, 3) and is perpendicular to the graph of y =3/2x-1      Log On


   



Question 1052870: Find the equation of the line that contains the point
P(2, 3)
and is perpendicular to the graph of
y =3/2x-1

Found 2 solutions by Alan3354, Boreal:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Same problem, different numbers
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Find the equation of the line that contains the point P(-2,0)
and is perpendicular to the graph of y=2/3x-3
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The slope of y = (2/3)x-3 is 2/3
The slope of lines perpendicular is the negative inverse, -3/2
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Use y+-+y%5B1%5D+=+m%2A%28x+-+x%5B1%5D%29 where (x1,y1) is the point.
y-0 = (-3/2)*(x+2)
y = (-3/2)*(x+2)

Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
Two lines that are perpendicular have a slope product that is the negative reciprocal, or -1.
y=(3/2)x-1 has a slope of 3/2
To find the negative reciprocal, flip the fraction and change the sign. The negative reciprocal is -2/3
Now use the point slope formula where
y-y1=m(x-x1), where (x1,y1) is the point and m the slope
y-3=(-2/3)(x-2)
y-3=-(2/3)x+(4/3)
3 is 9/3
y=-(2/3)x+13/3 ANSWER
graph%28300%2C300%2C-10%2C10%2C-10%2C10%2C%28-2x%2F3%29%2B%2813%2F3%29%2C%283x%2F2%29-1%29