anonymous
  • anonymous
Find the value of y for a given value of x , if y varies directly with x
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
MY BUTT IS BIGGER DAN URS
anonymous
  • anonymous
cause i got that buttix
anonymous
  • anonymous
If y=-252 when x = 84 what is y when x = 74

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anonymous
  • anonymous
@oaktree
OakTree
  • OakTree
Right here. Give me a moment.
OakTree
  • OakTree
Okay. So since it's a direct variance, we know the equation is \[y=kx\]So we plug in! We have\[-252 = 84k\]So we then have\[k=-3\]Following so far?
anonymous
  • anonymous
yea
anonymous
  • anonymous
@OakTree
OakTree
  • OakTree
Okay - sorry. So then we plug in our x and k to find y.\[y = kx = (-3)(74) = -222\]Makes sense?
anonymous
  • anonymous
C! is that all
OakTree
  • OakTree
Yeah, that's it.
anonymous
  • anonymous
thanks again

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