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millsemily

  • one year ago

The value of y varies directly with x. What is k the constant of variation for this function, and what is y for the given value of x? y= -1/2 when x=6. Find y when x=-3 Can someone explain this as they solve? Because I have a lot more of them, and I'd like to do the rest on my own :) Thanks!

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  1. rishavraj
    • one year ago
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    as it varies directly so y = kx

  2. rishavraj
    • one year ago
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    get "k" from above equation by plugging given value of y and x

  3. imqwerty
    • one year ago
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    so y varies directly with x y ∝ x now removing the proportionality sign '∝' and putting constant k we get y=kx we know when y=-1/2 , x =6 so -1/2 =k(6) so k=-1/12

  4. millsemily
    • one year ago
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    And the other is 1/4 , right?

  5. imqwerty
    • one year ago
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    yea

  6. millsemily
    • one year ago
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    Thanks, wasn't as hard as I was making it xD

  7. imqwerty
    • one year ago
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    ( ͡° ͜ʖ ͡°)

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