Question

A print shop charges a fixed amount per photocopy and gives a 10% discount off the total cost of the photocopies. The total cost is a function of the number of photocopies made. What is the independent variable?

Answer 1

The Second Choice!

Explanation:

X and Y are variables. Y depends on X, remember that! So, the amount of cost depends on the amount of copies, so the cost would be the Y and the amount of copies would be the X! Good luck!!

Answer 2

the number of photocopies made

Explanation:

The wording "a function of the number of photocopies made" tells you that "the number of photocopies made" is the independent variable.

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The wording "y is a function of x" means x is the independent variable.