SOLUTION: The new candy store charges .45 per pound of candy someone buys. New customers receive a $4.50 discount for purchases of at least $4.50. The function f(x) = .45x - 4.50 models th

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Question 909093: The new candy store charges .45 per pound of candy someone buys. New customers receive a $4.50 discount for purchases of at least $4.50. The function f(x) = .45x - 4.50 models the cost, f(x), to buy x pounds of candy. What is an appropriate domain for the function?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The new candy store charges .45 per pound of candy someone buys. New customers receive a $4.50 discount for purchases of at least $4.50. The function f(x) = .45x - 4.50 models the cost, f(x), to buy x pounds of candy. What is an appropriate domain for the function?
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Note: Cost must be greater than or equal to zero.
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To find the domain, solve::
0.45x - 4.50 >= 0
0.45x >= 4.50
x >= 10 lbs.
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Cheers,
Stan H.
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