Question

Ill give a medal and its multiple choice..

Marie noticed that a various combination of nickels and dimes could add up to $0.70. If x equals the number of nickels in a combination and y equals the number of dimes, which set would represent the domain where y is a function of x?


{0, 2, 4, 6, 8, 10, 12, 14}


{0, 1, 2, 3, 4, 5, 6, 7}


{0, 1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14}


(2, 4, 6, 8, 10, 11, 12, 13, 14}

Answer 1

how many possible nickels can you have to make up $.70

Answer 2

14

Answer 3

yeah could be 14
can't be 13 though
could be 12, 10, 8, ...

Answer 4

so x=14 and y=7 ?

Answer 5

i would go with
\[\{0, 2, 4, 6, 8, 10, 12, 14\}\]

Answer 6

oh i think you might be confused by the question

Answer 7

yea that happens alot.

Answer 8

it is asking for the possible number of nickles you could have

Answer 9

it says y is a function of x.

Answer 10

you know there are only nickels and dimes, and you know the total is 70 cents
so when the idiot who wrote this question said "y is a function of x" then asked for the domain, what they were really asking is for the possible number of nickels you could have in this situation

Answer 11

OHHHHHH

Answer 12

not real clear was it?

Answer 13

Nope.