Answer: The price per unit is $48, when 30 units are demanded.
Step-by-step explanation:
Since we have given that
At price of $12 per unit, the number of units demanded = 40 units
At price of $18 per unit, the number of units demanded = 25 units.
So, the coordinates would be
(40,12) and (25,18)
As we know that x- axis denoted the quantity demanded.
y-axis denoted the price per unit.
So, the slope would be
So, the equation would be
So, if 30 units are demanded, the price per unit would be
Hence, the price per unit is $48, when 30 units are demanded.