freemap
  • freemap
Which lines are perpendicular to 5x + 4y = 8? Choose all answers that are correct. A. –5x + 4y = –5 B.5y = –4x – 15 C.5y = 4x + 5 D.–4x + 5y = 10
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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Vocaloid
  • Vocaloid
our first step is to convert each equation into y = mx + b form, do you know how to do that?
freemap
  • freemap
YES, is one of the answers A?
Vocaloid
  • Vocaloid
hm, I don't think A is one of the answers, let's walk it through step by step let's start with the original equation 5x + 4y = 8 we can re-arrange this to get 4y = -5x + 8 y = (-5/4)x + 2 the slope of the original equation is (-5/4), so any line that is perpendicular will have a slope of (4/5) check each of the four answer choices to see which one(s) have a slope of 4/5

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freemap
  • freemap
D
Vocaloid
  • Vocaloid
D is one of the answers, yes. there's also one more, can you find it? :)
freemap
  • freemap
I think so, just a sec
madhu.mukherjee.946
  • madhu.mukherjee.946
@Vocaloid great job
Vocaloid
  • Vocaloid
thank you ^_^
dinamix
  • dinamix
its D the answer and i sure about it
Vocaloid
  • Vocaloid
yup, C and D are both answers
freemap
  • freemap
Thanks so much!!!!
dinamix
  • dinamix
@Vocaloid |dw:1440948128470:dw| @Vocaloid , @freemap

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