Which describes changes to the graph of w(x), when applying the transformation w(x – 19)?

Replacing x with x − 19 shifts the graph 19 units to the right. For a point (r, s) on the original graph, the same output s occurs when the new input is r + 19, since (r + 19) − 19 = r. Thus the point moves to (r + 19, s), which is choice C.

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