Question

8. You have an economy in which there are two consumers with demand functions: P = 10 – 2Q, and P = 6 – 2Q. The total number of units demanded with a price of $6 per unit is:

Answer 1

Rearrange the equations, the two demand curves are
\[Q = \frac{10 -P}{2} \]
\[Q = \frac{6 -P}{2} \]
at P = 6, the two quantities are 2 and 0. So total quantity demanded is 2