2. Determine whether y varies directly with x. If so, find the constant of variation k.

3y = –7x – 18

a. yes; 3
b. yes; –7
c. no
d. yes; 7/3

I know how to do this, but this question seems a little confusing. If someone could just explain it to me better?

Question

2. Determine whether y varies directly with x. If so, find the constant of variation k.

3y = –7x – 18

a. yes; 3
b. yes; –7
c. no
d. yes; 7/3

I know how to do this, but this question seems a little confusing. If someone could just explain it to me better?

lhgraythorn · Answer

My answer choice would be C. just because it seems like it wouldn't have a constant pattern.

vocaloid · Answer

your answer is good

just remember:

a direct variation can be written in the form

y = kx

since

3y = –7x – 18

cannot be written in the form y = kx (because of the -18 part) we do not have a direct variation

lhgraythorn · Answer

So answer c is correct? y does not constantly vary with x?

maurticewilliams · Answer

do u still need help

lhgraythorn · Answer

Well, I just need to clarify that c is the answer, because ik the y does not constantly vary with the x?