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The function f(x) = 0.11x + 43 relates how much Derek pays for phone service, f(x), to the number of minutes, x, used for international calls in a month. What is the value and meaning of f(320)?

A$78.20; this is the amount Derek pays for 320 months of service
B$78.20; this is the amount Derek pays for 320 minutes of international calls
C$92.50; this is the amount Derek pays for 320 months of service
D$92.50; this is the amount Derek pays for 320 minutes of international calls

Verified Answer :

f(x) = 0.11x + 43
f(320) = 0.11*320+43= $78.2

The answer to your question is B. I hope this is the answer that you are looking for and it comes to your help.

Answer:

B

Explanation:

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