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anonymous

  • one year ago

Which equation represents a direct linear variation? A.y=x^2 B.y=x+3 C.y=2/5x D.y=1/x

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  1. Vocaloid
    • one year ago
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    well, for a direct linear variation, the equation must be in the form y = kx, where k can be any number

  2. Vocaloid
    • one year ago
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    x cannot be in the denominator, and x cannot have an exponent other than 1

  3. Vocaloid
    • one year ago
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    nothing can be added or subtracted to x

  4. anonymous
    • one year ago
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    So that means its A right?

  5. Vocaloid
    • one year ago
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    nope, try again...

  6. Vocaloid
    • one year ago
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    x cannot have an exponent other than 1

  7. anonymous
    • one year ago
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    well its not B right since that one is addition

  8. Vocaloid
    • one year ago
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    right, keep going

  9. anonymous
    • one year ago
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    is it d?

  10. Vocaloid
    • one year ago
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    nope, remember that x cannot be in the denominator

  11. anonymous
    • one year ago
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    Oh duh. So its C :D

  12. Vocaloid
    • one year ago
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    y = kx y = (2/5)x see how these equations are similar?

  13. Vocaloid
    • one year ago
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    yes C

  14. anonymous
    • one year ago
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    Yes i see that now, thank you for taking the time to help me :)

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