Question

Describe the transformations that produce the graph of g left parenthesis x right parenthesis equals start fraction 1 over 2 end fraction left parenthesis x minus 4 right parenthesis superscript 3 baseline plus 5 from the graph of the parent function f left parenthesis x right parenthesis equals x squared. Give the order in which they must be performed to obtain the correct graph.

(4 points)

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1 answer

To derive the graph of \( g(x) = \frac{1}{2}(x - 4)^3 + 5 \) from the parent function \( f(x) = x^2 \), we will go through a series of transformations. However, it seems there might be some confusion as \( g(x) \) is based on a cubic function while \( f(x) \) is a quadratic function. Assuming you meant to relate \( g(x) \) to a cubic parent function like \( f(x) = x^3 \), we can detail the appropriate transformations.

Here’s the step-by-step breakdown of the transformations from \( f(x) = x^3 \) to \( g(x) = \frac{1}{2}(x - 4)^3 + 5 \):

  1. Horizontal Shift:

    • Start with \( f(x) = x^3 \).
    • To shift the graph to the right by 4 units, replace \( x \) with \( x - 4 \): \[ f(x) = (x - 4)^3 \]
  2. Vertical Compression:

    • To compress the graph vertically by a factor of \( \frac{1}{2} \), multiply the entire function by \( \frac{1}{2} \): \[ f(x) = \frac{1}{2}(x - 4)^3 \]
  3. Vertical Shift:

    • Finally, to shift the graph up by 5 units, add 5 to the function: \[ g(x) = \frac{1}{2}(x - 4)^3 + 5 \]

Thus, the order of transformations from the graph of \( f(x) = x^3 \) to the graph of \( g(x) \) is as follows:

  1. Shift right by 4 units.
  2. Compress vertically by a factor of \( \frac{1}{2} \).
  3. Shift up by 5 units.

If you intended to relate \( g(x) \) to a quadratic function, please clarify, and I can adjust the explanation accordingly!