# Homework Help: Function and relation

1. Jul 8, 2011

### nae99

1. The problem statement, all variables and given/known data

9. Jul 8, 2011

### nae99

ok so it would be
C(x) = 325(x)+25 000

10. Jul 8, 2011

### LCKurtz

What about the $100 rent (or salaries or whatever for that day)? Once you answer that, what is the answer to build n widgets? And if I sell n of them for$150 each, how much revenue will I get?

11. Jul 8, 2011

NO! What does the $325 have to do with the cost??? 12. Jul 8, 2011 ### nae99$325 is the selling price
i dont know the formula, i think once i have the formula i will be able to do it

13. Jul 8, 2011

### LCKurtz

I am trying to help you understand how to figure out the formula. It would help if you would answer the widget questions I have posted above. Please don't edit some previous post; just reply to this one.

14. Jul 8, 2011

### nae99

it will cost $175 to build n widgets And if u sell n of them for$150 each, would get \$450

15. Jul 8, 2011

### LCKurtz

Those are the answers for 3 widgets. What are the answers for n?

16. Jul 8, 2011

### nae99

would n=3

17. Jul 8, 2011

### LCKurtz

You need to use n in the formulas instead of 3 if that's what you are asking. What do you get for both questions?

18. Jul 8, 2011

### nae99

that's the thing, i dont know the formula

19. Jul 8, 2011

### LCKurtz

But you do know the formula if you just think about it. You answered both my questions for 3 widgets. You did a mental calculation to get those answers. You did a calculation using the number 3. Can you do the same calculation for 4 widgets? 5? 6?

Just describe the calculation you did but use n instead of a specific number. I know you can do it.

20. Jul 8, 2011

### nae99

is it
n= 25(n) + 100