If the demand function is Qd=-0.5+20,calculate the quantity demand when the price is 15.00?

In its standard form a linear demand equation is Q = a - bP. That is, quantity demanded is a function of price. The inverse demand equation, or price equation, treats price as a function g of quantity demanded: P = f(Q). To compute the inverse demand equation, simply solve for P from the demand equation.

wondering where Price is in the equation?

To calculate the quantity demand when the price is $15.00, you need to substitute the given price into the demand function and solve for Qd.

The demand function equation given is Qd = -0.5 + 20.

Step 1: Substitute the price (P) into the demand function equation.
Qd = -0.5 + 20
Qd = 19.5

Hence, the quantity demand when the price is $15.00 is 19.5 units.