3. (Supply Curve) Suppose a competitive firm with the cost function of (y) = $y* 10y*+ 150y. o (a) Suppose that the firm is currently producing, and the output price (p) is 150 today. What is the optimal level of y*? E (b) Find the shutdown point (Yshutdown) | () Find the minimum value of the output price that will make the firm to produce some output (i.e., find the lowest p that makes y* > 0). *