There are three sellers in a market. Their supply curves are given by
qA=5p−10, p≥5qB=12p−17, p≥10qC=4p−15, p≥15
The market supply curve equation is _______
q = 21p -42 at a price of 20
q = 17p -27 at a price of 12
qA=5p−10, p≥5qB=12p−17, p≥10qC=4p−15, p≥15
p<5⇒q=05≤p<10⇒q=qA10≤p<15⇒q=qA+qBp≥15⇒q=qA+qB+qC