If the supply curve is given by S(p) = 100 + 20p, what is the formula for

the inverse supply curve? Show your working

The inverse supply curve is the inverse of the original supply curve. To find the inverse, we need to solve for p in terms of S.

S(p) = 100 + 20p

p = (S - 100) / 20

Therefore, the inverse supply curve is p = (S - 100) / 20.