Pls help fast!!! BRAINLIEST WILL BE AWARDED Examine the list of ordered pairs on a table of values of a function, f(x) and determine if it represents a linear function by checking for equal differences over equal intervals.

x f(x)

5 −6
6 −3
7 0
8 3
9 6
10 9
11 12

Complete the sentences.
The function changes by ____ over the intervals of 1 for x-values.
The function changes by ____ over the intervals of 2 for x-values.
The function changes by ____over the intervals of x for x-values.