SOLUTION: I hope someone can explain this problem to me. I still do not understand what I am doing or why I am doing it. Find the slope of the y intercept form that passes through the poi

Algebra ->  Linear-equations -> SOLUTION: I hope someone can explain this problem to me. I still do not understand what I am doing or why I am doing it. Find the slope of the y intercept form that passes through the poi      Log On


   

Question 48656: I hope someone can explain this problem to me. I still do not understand what I am doing or why I am doing it.
Find the slope of the y intercept form that passes through the point (6,-3) and is perpendicular to the line y=9%2F7x%2B2
Please help me!
Mary
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find the slope of the y intercept form that passes through the point (6,-3) and is perpendicular to the line y=9%2F7x%2B2
Given y=(9/7)x + 2
The line perpendicular to it has slope=m=-7/9
The equation you want is y=mx+b
You are told x=6, y=-3, and you now know m=-7/9
Substitute to find "b", as follows:
-3=(-7/9)6+b
-18/6 =-42/6 + b
b=24/6=4
EQUATION:
y=(-7/9)x+4 is the line perpendicular to the given line and passing through
the point (6,3).
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Cheers,
Stan H