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Ch. 2 - Functions and Graphs
Chapter 3, Problem 19

In Exercises 17-32, use the graph of y = f(x) to graph each function g. Graph of y = f(x) showing a parabola with points at (-4,0), (0,-16), and (4,0).
g(x) = f(x-1)

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Function Transformation

Function transformation refers to the changes made to the graph of a function when it is altered by operations such as shifting, reflecting, or stretching. In this case, g(x) = f(x-1) represents a horizontal shift of the function f(x) to the right by 1 unit. Understanding how these transformations affect the graph is crucial for accurately sketching the new function.
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Domain & Range of Transformed Functions

Graph of a Parabola

The graph of a parabola is a U-shaped curve that can open upwards or downwards, depending on the leading coefficient of the quadratic function. In the provided graph, the function f(x) is a downward-opening parabola with its vertex at (0, -16) and x-intercepts at (-4, 0) and (4, 0). Recognizing the characteristics of parabolas helps in predicting how transformations will affect their shape and position.
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Horizontal Parabolas

Vertex and Intercepts

The vertex of a parabola is the highest or lowest point on the graph, while the x-intercepts are the points where the graph crosses the x-axis. For the function f(x), the vertex is at (0, -16), indicating it is the minimum point, and the x-intercepts at (-4, 0) and (4, 0) show where the function equals zero. Identifying these key points is essential for accurately graphing the transformed function g(x).
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