kris2685
write an equation of the line containing the specified point and perpendicular to the indicated line
(0,6),2x -5=y
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RyanL.
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Ok so all you need is a point and a slope.
You already have your point (0,6)
and now all you need is the slope which you can get from this line: 2x -5=y
RyanL.
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Can you tell me the slope of the line 2x -5=y
kris2685
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-3
RyanL.
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y=mx+b
RyanL.
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where m is the slope. Can you give it one more shot and tell me the slope?
kris2685
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2
RyanL.
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great but since the line we are looking for is perpendicular to this the slope actually has to be a negative reciprocal.
That's fancy math talk of saying - 1/2
RyanL.
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now we use the point slope form.
\[y-y_1=m(x-x_1)\]
where \[(x_1,y_1)=(0,6)\]\[m=-\frac{1}{2}\]
RyanL.
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plug that in and solve for y if you have to.
RyanL.
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Get it?
kris2685
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y= -1/2 x-6
RyanL.
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y= -1/2 x+6
actually because you add 6 to both sides. But close enough good job!
kris2685
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thank you