Lily Has Been Keeping Track of What She Spends to Eat

question 98

True/False

Lily has been keeping track of what she spends to eat out.The last week's expenditures for meals eaten out were $5.69,$5.95,$6.19,$10.91,$7.49,$14.53,and $7.66.The mean amount Lily spends on meals is $8.35.

---

Definitions:

Inverse Function

A function that reverses the operation of a given function, such that the composition of the two yields the original input.

Function

A framework involving a set of inputs and a roster of potential outputs, with the stipulation that each input is corresponded with only one output.

Composition

The combining of distinct parts or elements to form a whole, especially in mathematics where functions are combined.

Function

A mathematical relationship where each input has a single output, often expressed as f(x).