Posted by **Jane** on Monday, January 6, 2014 at 8:20pm.

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 -
**Reiny**, Monday, January 6, 2014 at 8:30pm
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 -
**Jane**, Monday, January 6, 2014 at 8:44pm
Inverse for both I think. Right?

- Algebra 2 -
**Reiny**, Monday, January 6, 2014 at 9:03pm
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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