sloppycanada
  • sloppycanada
What is the slope of the line that is perpendicular to y = 2x – 3? How do I do this? Please don't give me the answer.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
y=mx+b For two lines to be perpendicular, their two slopes (m) must be -1 when it gets multiplied. y=2x-3 2 represemts m in y=mx+b, so the slope is 2 2*(slope of other line)=-1
anonymous
  • anonymous
2
anonymous
  • anonymous
Y=(slope)x+y-intercept thats why

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sloppycanada
  • sloppycanada
Okay so, y = 3x – 3 the slope would be 1/3?
anonymous
  • anonymous
no its just 3
anonymous
  • anonymous
or 3/1
anonymous
  • anonymous
Slope of which line? y=3x-3 or the line perpendicular to y=3x-3? Btw dont listen to the person that posted after me. It is not correct.
jim_thompson5910
  • jim_thompson5910
take the original slope flip the fraction and flip the sign to get the perpendicular slope
jim_thompson5910
  • jim_thompson5910
so for example, if we had the original slope to be 2/7, then the perpendicular slope would be -7/2 another example original: -4/9 perpendicular: 9/4 these are just examples and none of this is the answer
sloppycanada
  • sloppycanada
wait. it wants the parallel to y = 3x - 3
jim_thompson5910
  • jim_thompson5910
parallel lines have equal slopes
anonymous
  • anonymous
How are you skipping to another equation and going from perpendicular to parallel? Are you done with your first question?
sloppycanada
  • sloppycanada
okay so it'd be three
sloppycanada
  • sloppycanada
?
anonymous
  • anonymous
yup
sloppycanada
  • sloppycanada
the slope of the first one, the perpendicular thing, would be -2 since apparently it's the opposite of the original.
jim_thompson5910
  • jim_thompson5910
sloppycanada, you forgot to flip the fraction
jim_thompson5910
  • jim_thompson5910
think of 2 as 2/1
sloppycanada
  • sloppycanada
So it'd be -1/2? Since it's positive in the original?
jim_thompson5910
  • jim_thompson5910
yeah if +2/1 is the original slope, then -1/2 is the perpendicular slope
sloppycanada
  • sloppycanada
What is the slope of the line that is parallel to y = 3x – 3? so for this it'd just be 3?
jim_thompson5910
  • jim_thompson5910
yep
sloppycanada
  • sloppycanada
Thanks a bunch!

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