Exhibit 4-1
the Following Are the Equations for the Supply $Q_{d}=20-2 P$

Multiple Choice

Exhibit 4-1
The following are the equations for the supply and demand curves in the market for weezils:
Demand:
$Q_{d}=20-2 P$
Supply:
$Q_{s}=5+3 P$
where $Q_{d}$ is the quantity demanded, Qs is the quantity supplied, and P is the price per weezil in dollars.
-Refer to Exhibit 4-1.If consumers decide that they want 20 percent fewer weezils at every price, the equation for the new demand curve for weezils will be

A) $\mathrm { Q } _ { \mathrm { d } }$ = 20 - 1.6P.
B) $\mathrm { Q } _ { \mathrm { d } }$ = 0.2(20 - 2P) .
C) $\mathrm { Q } _ { \mathrm { d } }$ = 0.8(20 - 2P) .
D) $\mathrm { Q } _ { \mathrm { d } }$ = 80(20 - 2P) .