Need help ASAP!! How many points do you need to know to draw the graph of a direct proportionality? which are?

Find the quotient with the restriction.

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.

Let f(x) = x + 2 and g(x) = x2 + 4. find f(g(f(