8
Answer: ASet 3: Linear Functions (Advanced)
Explanation
PROBLEM
A profit model is P(x) = 5x - 100. Break-even point (P = 0)?
A profit model is P(x) = 5x - 100. Break-even point (P = 0)?
A.✓ Correct
20
B.
10
C.
15
D.
25
Detailed Explanation
Choice A is the best answer. 5x - 100 = 0. x = 20
Why others are wrong:
B: 10 is incorrect because it does not satisfy the equation.
C: 15 is incorrect because it does not satisfy the equation.
D: 25 is incorrect because it does not satisfy the equation.