Answer:
At least 6 students must be enrolled in the class for the instructor to make a profit.
At least 20 students must be enrolled in the class for the instructor to make $1,000 (or more) profit per month.
Step-by-step explanation:
The function models the profit of the instructor of a guitar class per month.
1. If the instructor makes a profit, then
So, at least 6 students must be enrolled in the class for the instructor to make a profit.
2. If the instructor needs to make 1,000.00 profit per month, then
So, at least 20 students must be enrolled in the class for the instructor to make $1,000 (or more) profit per month.