Question

when doing word problems, the y intercept of a function does not make sense??

Answer 1

So what do you need explained?

Answer 2

so im doing this problem:

the price you pay for a box of donuts varies linearly with the number of donuts in the box. for 5 donuts the price is 1.15$ and for 11 donuts it is 2.35$

the equation i get is f(x)= -2x+11.35

Answer 3

-.2x

Answer 4

what does the 11.35 mean??? and how would i graph it? @hiitsme!

Answer 5

How did you get 11.35?

Answer 6

i plug in the (ind,dep)

Answer 7

into f(x)=-.2x+b for b

Answer 8

let x= # donuts
f(x)= # of pages left

(# donuts, cost of donuts $)
(5,1.5) (11,2.35)

Answer 9

Ok, let's just say that is correct. So your y would then be 11.35. So that is where your first point goes

Answer 10

*utterly confused

Answer 11

yes

Answer 12

i did that at first, but it doesn't make any sense to the word problem...

Answer 13

Are you sure your f(x) is correct?

Answer 14

f(x)= price, my bad. thats from another question xD

Answer 15

I'll be honest, I don't know how to do this problem because I did this kind of stuff last year. Good luck though! (:

Answer 16

i thnk i got it actually. lol. thanks anyway