A package of paper towels contains 3 rolls. Each package of paper towels costs $2.79.
A function, f(x), is written to represent the cost of purchasing x packages of paper towels.
What is the practical domain for the function f(x)?
these are the options
all real numbers
all whole numbers
all whole numbers that are multiples of 3
all positive integers
I selected the last one. Is this right????? Plz help!
1 answer
I believe you are right. The number of rolls will not be negative and they come in a plastic wrapping that makes it difficult to buy a fractional roll.