anonymous
  • anonymous
Help!! Definate Medal!!! Which lines are perpendicular to 5x + 4y = 8? Choose all answers that are correct. 4y=-5x+4 4y= 5x + 12 5y = 4x + 15 5y = –4x – 15 My answer is 4y=-5x+4.. what do you think
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
@hero @Nnesha
MrNood
  • MrNood
first write the equation as y = mx +b the value m is the slope of th eoriginal line all perpendicular lines will have slope = -1/m
MrNood
  • MrNood
btw - I think your answer is incorrect...

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anonymous
  • anonymous
y = mx +b=4y=-5x+8
MrNood
  • MrNood
you need to show some work - otherwise you can just guess all 4 until I say... what is the slope of the original line? then - what is the slope of any perpendicular line..?
MrNood
  • MrNood
4y=-5x+8 so y= ??
anonymous
  • anonymous
No I wasn't guessing all 4 -.-, you asked me to rewrite the equation in the formula y = mx +b so i did and i wanted you to take me from there.
anonymous
  • anonymous
cause im kinda confused
anonymous
  • anonymous
y=−5/4+2
anonymous
  • anonymous
Slope is −5/4
anonymous
  • anonymous
Y = 2 @MrNood
anonymous
  • anonymous
but im confused from there..:(
anonymous
  • anonymous
@Hero help please
MrNood
  • MrNood
OK so slope of original line is -5/4 and so the slope of any perpendicular line is -1/m -1 /(-5/4) = 4/5 so which of the answer options has a slope of 4/5? (hint - the offset value i.e. the constant number does not affect the slope or answer....)

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