Math Problem Statement
Use transformations of the absolute value function, f left parenthesis x right parenthesis equals StartAbsoluteValue x EndAbsoluteValue, to graph the function h left parenthesis x right parenthesis equals StartAbsoluteValue x plus 3 EndAbsoluteValue plus 4. Question content area bottom left Part 1 What transformations are needed in order to obtain the graph of h(x) from the graph of f(x)? Select all that apply. A. Reflection about the y-axis B. Reflection about the x-axis C. Vertical shift D. Horizontal shift E. Horizontal stretch/shrink F. Vertical stretch/shrink Part 2 Use the graphing tool to graph the equation.
Solution
To determine the transformations needed to graph from , we analyze the equation step by step.
Part 1: Identifying Transformations
We start with the basic absolute value function and compare it to .
-
Inside the absolute value :
- The indicates a horizontal shift to the left by 3 units.
- Remember: Adding a constant inside moves the graph left by .
-
Outside the absolute value :
- The indicates a vertical shift upward by 4 units.
- Adding a constant outside the function moves the graph up by .
Final Answer:
The transformations are:
- C. Vertical shift (up 4 units)
- D. Horizontal shift (left 3 units)
Part 2: Graphing the Function
To graph :
- Start with the parent function , which has a "V" shape centered at .
- Shift it left 3 units so the vertex moves to .
- Shift it up 4 units so the vertex moves to .
- The graph retains its "V" shape, opening upwards.
Instructions for Graphing Tool:
- Locate the new vertex at .
- Use the standard slope of the absolute value function:
- To the right, the slope is (rise over run: 1 unit up for every 1 unit right).
- To the left, the slope is (rise over run: 1 unit up for every 1 unit left).
- Draw the "V" shape starting from .
Recap:
- Horizontal shift: left 3 units
- Vertical shift: up 4 units
- No reflection or stretch/shrink.
Do you need further clarification, or help using the graphing tool? Let me know!
Related Questions:
- What is the effect of a negative sign inside , such as ?
- How does the graph of differ from ?
- If , what transformations occur?
- How would a vertical stretch affect the graph of ?
- How can you write a transformation for a graph shifted right by 2 units and down by 3 units?
Tip:
Remember that transformations inside the absolute value affect the horizontal direction, while transformations outside affect the vertical direction.
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Math Problem Analysis
Mathematical Concepts
Absolute Value Functions
Transformations of Functions
Graphing Functions
Formulas
h(x) = |x + 3| + 4
Theorems
Transformation of functions: horizontal and vertical shifts
Suitable Grade Level
Grades 8-10
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