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Equations given as only a constant $y$-value represent a horizontal line. Thus, the $y$-value will be $7$ for all points on the line. Let's graph three arbitrary points with $y$-value $7.$

We know now complete the graph with a line through the points.

b

Now, the graph of $y=-32 $ will pass through **all** points with $y$-value $-32 .$