Question

FAN AND MEDAL i DONT WANT ANSWER I NEED HELP


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)?

Answer 1

If they give you f(320), you just plug in 320 into the equation where x is.

Answer 2

So @marihelenh f(320)=0.11*320+43

Answer 3

Also here are the answer

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

Answer 4

That is how you would set it up.

Answer 5

so 78.2 this is the amount derek pays for 320 months of service @marihelenh

Answer 6

320 is equal to the number of minutes Derek uses in a month. 320 isn't the months, it is the minutes.

Answer 7

so its B

Answer 8

@marihelenh

Answer 9

Yep! That is correct.

Answer 10

Thx so much you helped me so much :)