I am currently working on a unit review for Algebra 1, and I'm slightly confused on this first question. I have to tell whether y varies directly with x. If it does, I have to write an equation for the direct variation.

it's a table and it pretty much looks like this:
x|y
-6|9
1|-1.5
8|-12

I'm a little confused about what I'm supposed to do, can anyone help?

Question

I am currently working on a unit review for Algebra 1, and I'm slightly confused on this first question. I have to tell whether y varies directly with x. If it does, I have to write an equation for the direct variation.

it's a table and it pretty much looks like this:
  x|y
-6|9
  1|-1.5
  8|-12

I'm a little confused about what I'm supposed to do, can anyone help?

anonymous · Answer

y = mx + c

anonymous · Answer

you need to solve for m and c using the table given to you

anonymous · Answer

ok thank you so much!

anonymous · Answer

So do I have this right? 9 = 1(-6) + 3, would that be right?

anonymous · Answer

opps I meant -1, because you have to multiply two negative in order to get a positive.

anonymous · Answer

@Kanwar245 so would it be that way for all of them?