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Use transformations of the absolute value function, \( f(x)=|x| \), to graph the function \( h(x)=|x+4|+5 \). What transformations are needed in order to obtain the graph of \( h(x) \) from the graph of \( f(x) \) ? Select all that apply. \( \square \) A. Horizontal stretch/shrink \( \square \) B. Vertical shift \( \square \) C. Vertical stretch/shrink \( \square \) D. Horizontal shift \( \square \) E. Reflection about the \( x \)-axis \( \square \) F. Reflection about the \( y \)-axis

Ask by Osborne Gibbs. in the United States
Mar 13,2025

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Tutor-Verified Answer

Answer

To graph \( h(x) = |x+4| + 5 \) from \( f(x) = |x| \), you need to perform a horizontal shift 4 units to the left and a vertical shift 5 units up. So, select options **B. Vertical shift** and **D. Horizontal shift**.

Solution

We start with the base function: \[ f(x)=|x| \] and want to graph the transformed function: \[ h(x)=|x+4|+5 \] **Step 1: Horizontal Shift** The expression \(|x+4|\) inside the absolute value shows a horizontal translation. In general, replacing \( x \) with \( x+c \) shifts the graph to the left by \( c \) units if \( c > 0 \). Since we have \( x+4 \), this corresponds to a shift \(4\) units to the left. **Step 2: Vertical Shift** The additional \( +5 \) outside the absolute value corresponds to a vertical translation. In general, adding a constant outside the function shifts the graph upward by that constant if it is positive. Thus, the \(+5\) shifts the graph upward by \(5\) units. **Conclusion:** The transformations needed to obtain the graph of \( h(x) \) from \( f(x) \) are: - Horizontal shift (to the left by 4 units) - Vertical shift (upward by 5 units) Thus, the correct selections are: \[ \square \textbf{B. Vertical shift} \quad \text{and} \quad \square \textbf{D. Horizontal shift} \]

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Bonus Knowledge

To graph the function \( h(x)=|x+4|+5 \) from the base function \( f(x)=|x| \), we need to undertake specific transformations: 1. **Horizontal Shift:** The expression \( x+4 \) indicates that we are shifting the graph of \( f(x)=|x| \) to the left by 4 units. This corresponds to a horizontal shift. 2. **Vertical Shift:** Adding 5 to the absolute value function means shifting the entire graph up by 5 units. So, the correct choices for the transformations you need are: \[ \square \] A. Horizontal stretch/shrink \[ \square \] B. Vertical shift ✅ \[ \square \] C. Vertical stretch/shrink \[ \square \] D. Horizontal shift ✅ \[ \square \] E. Reflection about the \( x \)-axis \[ \square \] F. Reflection about the \( y \)-axis

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