Question

What is the domain of the following list of ordered pairs? (-4,-2), (0,-3), (2,7), (1,4)

Answer 1

Explanation: To find the domain in a set of ordered pairs, we simply need to order the x-values or inputs from least to greatest.

In our list of ordered pairs, are x-values are as followed.

-4, 0, 2, 1

Now, let's arrange these from least to greatest.

-4, 0, 1, 2

Domain ⇒ -4, 0, 1, 2

Answer 2

`\bf (\stackrel{\downarrow }{-4},-2), (\stackrel{\downarrow }{0},-3), (\stackrel{\downarrow }{2},7), (\stackrel{\downarrow }{1},4)\qquad \qquad \stackrel{\mathbb{DOMAIN}}{\{-4,0,2, 1\}}`

recall, the x-coordinates are always the domain, and the y-coordinates are the range.