Question

The data in the table relates the total cost y to have a party with x guests at a restaurant.

  Number Of Guests              Total Cost($)
                 X                                      Y
                10                                     200
                15                                     300
                25                                   500
                30                                   600

Based on the information in the table, what is the function rule?

y = x + 190
x = y + 190
y = 20x
x = 20y

Answer 1

What do you do to x to make y?

Answer 2

It is y=20x
because all you do is look at it and tell that x affects the outcome of y so it would be y=
Then you see which ones are true.
Like y=20x you would test it by going through the numbers and seeing if it fits.
y=20*10 is 100.
y=20*15 is 300
y=20*25 is 500
and y=20*30 is 600

Answer 3

Oh ok. Thank for the explanation too it helps so that I can use it for help on othe questions!:D
Thank You!

Answer 4

Still working on this one????

Answer 5

Na I finished with this one! :D

Answer 6

why does it keep getting bumped?

Answer 7

I think I might have done it by accident haha oops :z :D

Answer 8

you can close it:)

Answer 9

Oh ok I thought I did:D I'll check it right now :D

Answer 10

no worries, was just not sure you knew.

Answer 11

Oh yes I see it says open I just closed it : 0 :D thanks :D