Mills Reed
01/26/2023 · Middle School
L \( g(x)=\left|\frac{1}{2} x\right|-2 \) To obtain the graph of \( g(x)=\left|\frac{1}{2} x\right|-2 \), start with the graph of \( y=\square \) of the following function can be obtained from one of the basic graphs.
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Step-by-step Solution
To obtain the graph of \( g(x) = \left|\frac{1}{2} x\right| - 2 \), we can start with the graph of the basic absolute value function, which is \( y = |x| \).
Here are the steps to transform the graph:
1. **Horizontal Scaling**: The term \( \frac{1}{2} x \) indicates a horizontal stretch by a factor of 2. This means that for every \( x \) value, the corresponding \( y \) value will be the same as if we were using \( 2x \) instead of \( x \). So, the graph of \( y = |x| \) will be stretched horizontally.
2. **Vertical Shift**: The \( -2 \) at the end indicates a vertical shift downward by 2 units. This means that after applying the horizontal stretch, we will move the entire graph down by 2 units.
Putting it all together, we can summarize the transformations as follows:
- Start with the graph of \( y = |x| \).
- Apply a horizontal stretch by a factor of 2 to get \( y = | \frac{1}{2} x | \).
- Shift the graph down by 2 units to obtain \( g(x) = | \frac{1}{2} x | - 2 \).
So, the function that can be obtained from one of the basic graphs is \( y = |x| \).
Quick Answer
Start with the graph of \( y = |x| \), then stretch it horizontally by a factor of 2 and shift it down by 2 units.
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