How to find the domain and range of a graph.

Step 1:

Know the meaning of domain and range.

Domain: The domain is the distance from left to right of the points which is represented by x

Range: The range is the distance from the bottom to the top of the points which is represented by y

Step 2:

Find each coordinate.

First the domain, the point on the left is -4 and the point on the right is 3

To show the domain you’d put the -4 first then a less than or equal(because the point is open) symbol then an x because the domain is on the x axis, then a less than(because the point is closed).

It would look like this:

-4≤ x<3

For the range it would be very similar.

-4 for the point on the bottom and positive 3 on the top

it is represented the same way as domain except you’d use a y

-4≤y<3