Given a cost function, how can I find supply curve?

Suppose that a farmer’s cost of growing y bushels of corn is given by the cost
function c(y) = y2=20 + y.

(i ) What is the farmer’s supply curve of corn as a function of the price of
corn?

(ii ) If the price of corn is $5 a bushel, how much corn will this farmer grow?

Thanks!!

✅ Answers

? Best Answer

MC=y
Supply curve=P=y