Answer:
c. all integers greater than 120
Step-by-step explanation:
For making profit, f(p) must be positive. You want f(p) to be greater than zero.
2.50p - 300 > 0
2.50p > 300
p > 120
Since the number of cones sold is always a whole number, the domain must be all integers greater than 120.
Answer: c. all integers greater than 120
Answer:
p > 120. p is an integer. Answer C
Step-by-step explanation:
If all you are interested in is profit, then you must find the break even point. The break even point is showing neither a profit nor a loss.
The break even point is the point where the function f(p) = 0. Be careful that you understand that p is not zero. The y value or f(p) is 0.
2.50p - 300 = 0 Add 300 to both sides
2.50p - 300 + 300 = 0 + 300 Combine
2.50p = 300 Divide both sides by 2.5
2.50/2.50 p = 300/2.50 Do the division
p = 120 cones
Conclusion
He must sell 120 cones to break even.
A: wrong. Any number less that 120 and he is not making money
B: wrong. What would it mean is p= 300.333 cones? What does the 0.333 stand for.
C: Correct. He has to sell an integer number of cones > 120
D: Wrong. Same reason as B
