The equation is .
Make the table of values to find ordered pairs that satisfy the equation.
\Choose values for x and find the corresponding values for y.
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0 \ | \
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1 \ | \
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2 \ | \
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Draw a coordinate plane.
\Plot the coordinate points.
\Then sketch the graph, connecting the points with a line.
\Since x can be any real number, there is an infinite number of ordered pairs that can be graphed. All of them lie on the graph.
\Notice that every real number is the x - coordinate of some point on the graph.
\Also, every real number is the y - coordinate of some point on the graph.
\So, the domain and range are both all real numbers.