For b) and c), can you please explain why these are FALSE by showing me a graph?

Al. In a competitive market if demand is Q=10-2P, and the cost of production for all firms is 2Q, then in equilibrium: a) Quantity is 2 and price is equal to 4. F Consumer surplus is y. & F A unit tax of 2 would raise prices less than 2 because demand is inelastic at the optimal point