$\"\"$

The equation is $\"\"$ .

Graph the equation $\"\"$ .

Graph:

$\"\"$

Graph the equation $\"\"$ .

Graph:

$\"\"$

Observe the two graphs, they are equal.

The sign of $\"\"$ is irrelevant for these graphs. If $\"\"$ , and everything else is the same, then the equations will be equivalent.

The equation c is match.

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