anonymous
  • anonymous
determine whether y varies directly with x if so find the constant of vartion k 3y=-7x-18 A yes; 3 B yes ; -7 C no D yes; 7/3
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
could someone help me with this problem
ybarrap
  • ybarrap
The slope of this equation is -7/3, which means when x increases by 3 y decreases by 7. This determines how y varies with x. However, none of these are in your options.
anonymous
  • anonymous
okay so it would be D ?

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ybarrap
  • ybarrap
that's the closest and it does vary by that factor, but it should be negative
anonymous
  • anonymous
well the problem doesnt say negative
ybarrap
  • ybarrap
yeah, now 3y varies with x by -7.
anonymous
  • anonymous
so that means its -7?
ybarrap
  • ybarrap
I would put D: 7/3 as the best answer.
anonymous
  • anonymous
okay thank you very much :)
ybarrap
  • ybarrap
yw

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