horsegirl27
  • horsegirl27
Please help! So, I know how to find the slope when given 2 sets of points. I can also figure out the slope when looking at a graph. But for problems such as 16x+8y=192, how do I find the slope??
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
solve for y. Once you have it in y=mx+b form the slope is m
horsegirl27
  • horsegirl27
Okay, thanks. So I'm trying to solve for y and put it in the other form?
anonymous
  • anonymous
yes

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UsukiDoll
  • UsukiDoll
rearrange the equation so it looks like y=mx+b ... you may need to do some division because we need y by itself.
horsegirl27
  • horsegirl27
What should I get when I do that? (this isn't a homework problem, I'm just finding practice problems to get more practice) I think if I see all the steps I may understand.
UsukiDoll
  • UsukiDoll
given: 16x+8y=192, we know that y = mx+b is the slope-intercept form so we need to rearrange 16x+8y=192 to make it look like y =mx+b so since the y portion needs to stay on the left what do we need to do to 16x?
horsegirl27
  • horsegirl27
Divide, right?
UsukiDoll
  • UsukiDoll
that's later on.
UsukiDoll
  • UsukiDoll
16x+8y=192 but we need it in the form of y=mx+b . The 8y stays on the left.. so what do we need to do 16x... we need to _______ 16x to both sides
anonymous
  • anonymous
|dw:1436186621877:dw|
UsukiDoll
  • UsukiDoll
I am so sorry ... my typing went to the dogs tonight
horsegirl27
  • horsegirl27
Ohhhh that makes more sense! Oki, let me try it with this problem.
horsegirl27
  • horsegirl27
y=2x+24, correct?
UsukiDoll
  • UsukiDoll
ok we now have our equation in y =mx+b form... 8y = -16x+192 so we divide the entire equation by 8. only the y portion of your answer is correct for the x portion, you forgot a negative sign the b value is wrong.
horsegirl27
  • horsegirl27
Oops, lost track of that negative!
UsukiDoll
  • UsukiDoll
wait nevermind the b is right
UsukiDoll
  • UsukiDoll
:P told ya I got sticky fingers my typing is off and I feel another migraine coming.. but yes everything was right except for the negative sign being dropped.
UsukiDoll
  • UsukiDoll
y=-2x+24
horsegirl27
  • horsegirl27
Ok. I'll have to watch out for that on my test, it's usually the little things that get me.
horsegirl27
  • horsegirl27
Thanks for the help guys!

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