Determine whether y varies directly with c. if so, find the constant of variation k and write the equations.

y varies directly with x if and only if there exists a constant k such that

for every input/output couple. If so, we have

Let's see if our input/output couples satisfy this request: the first couple yields

The second couple yields

The third couple yields

The last couple yields

So, the ratio is indeed constant

just find the gcf and solve the gcf's until you get each answer i have a really good feeling somethings missing xd (like the dimensions of the fence) *cough *cough *hint *hint

step-by-step explanation: