Answer:
A. $1000, the daily profit with no price increases
B. about 26; the number of $5 price increases that reduces profit to 0
C. $1600, the daily profit with a price increase of $50
Step-by-step explanation:
Given a graph of daily profit versus $5 price increases with points (0, 1000), (10, 1600), and (≈26, 0) identified, you want the meaning of the intercepts and the maximum.
The problem statement tells you the y-intercept is (0, 1000), and that it represents the daily profit if no price increases are made.
The approximate value of the x-intercept is given in the problem statement as (26, 0). The x-intercept means the profit will be near 0 if there are 26 increases of $5 in the price of the solar panels (to $650).
The approximate value of the maximum is given in the problem statement as 1600 when x = 10. The maximum of the function means profit can be maximized at $1600 per day by raising the price of a solar panel by $5×10 = $50.