Question

Functions
-1 -2
0. -1
1. 0
2. 1

Answer 1

This set of numbers appears to be a set of ordered pairs. Each ordered pair has a first number (x-value) and a second number (y-value).

If we plot these ordered pairs on a coordinate plane, we can see that they form a straight line that passes through the points (-1,-2), (0,-1), (1,0), and (2,1).

This line can be represented by the equation y = x + 1, which is a linear function.

In general, a function is a set of ordered pairs where each x-value is paired with exactly one y-value. In this case, the set of ordered pairs does represent a function because each x-value appears only once and is paired with a unique y-value.