To find: the price that the shop should charge to maximize monthly revenue and find the maximum monthly revenue.
Correct choice is A, that is, to maximize revenue, each Surfboard should be sold at $340.
Given information:
The shop sells 45 surfboards per month at price $500 each.
For each $20 decrease in price, about 5 more Surfboards per month are sold.
Property Used:
Factoring and Zeros:
To find the maximum or minimum value of a quadratic function, first use factoring to write the function in intercept form
Calculation:
Let x represent the price decrease and
Now, the required verbal model is:
Monthly revenue(dollars) = Number of Surfboards sold
So, the
Now, it is clear that here the zeros of the revenue function are
The average of zeros is
So, to maximize revenue, each subscription should cost,
So, correct choice is A .
Chapter 1 Solutions
Holt Mcdougal Larson Algebra 2: Student Edition 2012
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