The equation is .

Make the table of values to find ordered pairs that satisfy the equation.

In this case, it is easier to choose y values and then find the corresponding values for x. \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \

\ y \	\ \	\ (x, y) \
\ \	\ \	\ \
\ \	\ \	\ \
\ 0 \	\ \	\ \
\ 1 \	\ \	\ \
\ 2 \	\ \	\ \

\

Draw a coordinate plane.

Plot the coordinate points.

Then sketch the graph, connecting the points with a smooth curve.

Since y can be any real number, there is an infinite number of ordered pairs that can be graphed. All of them lie on the line shown.

Notice that every real number is the y - coordinate of some point on the line.

Also, every real number is the x - coordinate of some point on the line.

So, the domain and range are both all real numbers, and the relation is continuous.

From the table and the vertical line test that there are two y values for each x values.

Therefore, the equation does not represent a function.

The domain and range are both all real numbers, and the relation is continuous and the equation does not represent a function.