Question

Can someone please check the answer to my question? Please?

Question~
A company that manufactures radios first pays a start-up cost, and then spends a certain amount of money to manufacture each radio. If the cost of manufacturing r radios is given by the function c( r ) = 5.25r + 1.25 , then the value 5.25 best represents
a. The start-up cost
b. The profit earned from the sale of one radio
c. The amount spent to manufacture each radio
d. The average number of radios manufactured

Answer 1

I think its C

Answer 2

I believe it is A

Answer 3

But the start-up doesn't depends of the number of radios

Answer 4

oh ok @isaidavila could you try to tell me why you think its C? (I just want to see if I understand how to answer this question)

Answer 5

Do you undestand?

Answer 6

You pay the startup once at the beggining

Answer 7

But then you have to pay for each radio.
That means multiplication

Answer 8

Oh I see now, I think C is right

Answer 9

Ok

Answer 10

thank you for your help!

Answer 11

No problem

Answer 12

@isaidavila is correct. Great explanation!

Answer 13

Thanks @mathstudent55