Questions: (b) The graph of y=g(x) is shown. Draw the graph of y=g(2x).

(b) The graph of y=g(x) is shown. Draw the graph of y=g(2x).
Transcript text: (b) The graph of $y=g(x)$ is shown. Draw the graph of $y=g(2 x)$.
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Solution

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Solution Steps

Step 1: Identify the key points of the original graph

The original graph y=g(x)y = g(x) has vertices at (4,2)(-4, 2), (2,2)(-2, -2) and (0,0)(0, 0).

Step 2: Apply the transformation

The transformation y=g(2x)y = g(2x) is a horizontal compression by a factor of 12\frac{1}{2}. This means the x-coordinates of the original graph are multiplied by 12\frac{1}{2}, while the y-coordinates remain the same.

Step 3: Calculate the transformed points
  • (4,2)(-4, 2) transforms to (4×12,2)=(2,2)(-4 \times \frac{1}{2}, 2) = (-2, 2)
  • (2,2)(-2, -2) transforms to (2×12,2)=(1,2)(-2 \times \frac{1}{2}, -2) = (-1, -2)
  • (0,0)(0, 0) transforms to (0×12,0)=(0,0)(0 \times \frac{1}{2}, 0) = (0, 0)
Step 4: Plot the transformed points and draw the graph

Plot the points (2,2)(-2, 2), (1,2)(-1, -2), and (0,0)(0, 0) on the coordinate plane. Connect these points to form the graph of y=g(2x)y = g(2x).

Final Answer

The graph of y=g(2x)y=g(2x) has vertices at (2,2)(-2, 2), (1,2)(-1, -2), and (0,0)(0, 0). It is a horizontally compressed version of the original graph.

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