Graphing Radical Functions Answers
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Explain how to rewrite the function shown in order to determine the transformation of the parent function. Then, describe the transformation of the graph compared to the parent function.
Answer:
Factor −8 from the radicand to rewrite the function as y = −2∛(x + 1/2). This reflects the parent graph over the x-axis, stretches it vertically by a factor of 2, and shifts it 1/2 unit to the left.
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Reread your description. Did it include the following?
A
Rewrite the equation by factoring –8 from the radicand and taking the cube root to get –2 in front of the radical symbol.B
The graph is reflected over the x-axis.C
The graph is also reflected over the y-axis.D
The graph is vertically stretched by a factor of 2.E
The graph is translated ½ unit to the left.Did you find these answers helpful?
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