The graph of is stretched parallel to the -axis with scale factor . Find the equation of the new graph.

Answer and explanation

Correct answer: B.

  1. Step 1: A stretch of scale factor parallel to the -axis replaces with . Step 2. So the new graph is . **Answer: . Why not the others:** : That compresses the graph instead of stretching it. : That is a stretch parallel to the -axis. : That compresses the graph parallel to the -axis.

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