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Algebra 2

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I am trying to figure out if these problems are Direct Variation, Inverse Variation, or Neither. Could someone please check my answers?

m=-5p Direct

c=e/-4 Neither

c=3v Direct

r= 9/t Inverse

n=(1/2)f Direct

u=I/18 Neither

d=4t Direct

z= -0.2/t Inverse

  • Algebra 2 -

    suppose I write
    c = e/-4 as c = (-1/4) e

    and

    u = l/18 as us = (1/8)l

    now what do you think?

  • Algebra 2 -

    Inverse for both I think. Right?

  • Algebra 2 -

    No, both direct, the variable is in the numerator.
    I wrote it the way I did, to point that out to you.

    Notice that to be an inverse variation, the variable must be in the denominator.

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