Question

determain wheather y varies directly with x.
-4y=8x+16

Answer 1

yes:

y = x plus alot of noise

Answer 2

y = 1/x is an inverse relationship; y = x is a direct relationship

Answer 3

yes y=1 is not an option so thats wronq

Answer 4

its hard to tell; why would you put y=1 as an answer?

Answer 5

y varies directly with x is TRUE in this context.

Answer 6

is it 2 -4 or 8?

Answer 7

what if you decide to make either x or y the subject?

Answer 8

....is what 2 -4 or 8?

Answer 9

you have the equation of a line; it has an infinite number of solutions...

Answer 10

the slope of that line is -2.... 8/-4 = -2

so the change in y with respect to x is -2.

Answer 11

amistres but you have not prooved that the two vary directly