Introduction:
In mathematics, the study of functions and their graphs allows us to understand how changes in equations affect their visual representation. Translations, in particular, involve shifting a graph horizontally, vertically, or both, while preserving the shape of the original function. In this article, we will examine the translation from the graph of y = 6x^2 to y = 6(x + 1)^2 and explore the phrase that best describes this transformation.
Understanding Translations in Graphs:
Translations involve modifying a function’s equation by adding or subtracting values inside the parentheses, thereby shifting the graph in a particular direction. These shifts are parallel to the x- or y-axis and maintain the same shape as the original graph. In the case of y = 6x^2 to y = 6(x + 1)^2, the transformation introduces a horizontal shift.
The Translation Phrase: “Horizontal Shift to the Left”
When examining the transformation from y = 6x^2 to y = 6(x + 1)^2, the phrase that best describes the change is “horizontal shift to the left.” This means that the graph is moved in the negative x-direction, resulting in a shift towards the left side of the coordinate plane.
Explanation of the Translation:
The original equation, y = 6x^2, represents a standard quadratic function. The squared term, x^2, indicates a parabolic shape with its vertex at the origin (0, 0). The coefficient 6 determines the steepness or scale of the graph.
When we introduce the translation y = 6(x + 1)^2, the addition of 1 inside the parentheses modifies the function. Specifically, it affects the x-values, causing the graph to shift horizontally. By adding 1 to x, we move every point on the graph one unit to the left.
This horizontal shift results in a new vertex for the graph of y = 6(x + 1)^2. The vertex, which represents the minimum point of the parabola, is now located at (-1, 0). This shift to the left is evident as the entire graph is offset by one unit in the negative x-direction.
Conclusion:
Understanding the language used to describe mathematical transformations is crucial for effectively communicating and interpreting graph changes. In the case of the translation from y = 6x^2 to y = 6(x + 1)^2, the most appropriate phrase to describe the transformation is “horizontal shift to the left.” This phrase accurately conveys the movement of the graph in the negative x-direction by one unit. By recognizing and comprehending these transformations, we enhance our ability to analyze graphs, identify patterns, and deepen our understanding of mathematical concepts.
