Question

The road mileage between City M and several

selected cities is shown in the table. If we consider
this as a function that pairs each city with a distance
is the function a one-to-one function?

Answer 1

No, it's not a one to one function

Explanation:

In one to one function, the function is either increasing or decreasing. Also, in this type of function, the same values can not be assigned to two different domain elements.

In this case, distance from city C and City E are both 1195 miles from city M.

Thus defaults the law of one to one function.

Therefore it's not one to one function.