Math Problem Statement

y=x2y=\left\vert x-2\right\vert

Solution

The equation y=x2y = \left\vert x - 2 \right\vert represents a piecewise linear function. The absolute value function affects the graph, creating a V-shape.

Breakdown of the function:

  1. Definition:

    • The absolute value function x2\left\vert x - 2 \right\vert is defined as:
    x - 2 & \text{if } x \geq 2 \\ -(x - 2) & \text{if } x < 2 \end{cases}$$ This means the function behaves differently on either side of $$x = 2$$.
  2. Piecewise Form:

    • For x2x \geq 2: y=x2y = x - 2.
    • For x<2x < 2: y=x+2y = -x + 2.
  3. Vertex:

    • The vertex of the graph occurs at the point where x=2x = 2, giving y=0y = 0. Thus, the vertex is at (2,0)(2, 0).
  4. Graph Shape:

    • The graph consists of two linear segments:
      • A line with a positive slope m=1m = 1 for x2x \geq 2.
      • A line with a negative slope m=1m = -1 for x<2x < 2.
  5. Symmetry:

    • The graph is symmetric about the vertical line x=2x = 2.

Graphical Representation:

  • The graph is a V-shape opening upwards, with the vertex at (2,0)(2, 0).

Summary:

  • The function increases as xx moves away from 2 in either direction, with the slope being positive on the right and negative on the left.

Would you like to see the graph of this function, or do you have any questions about the explanation?


Here are 5 questions related to this function:

  1. How would the graph change if the function was y=x+2y = \left\vert x + 2 \right\vert?
  2. What is the domain and range of the function y=x2y = \left\vert x - 2 \right\vert?
  3. How does the vertex of the graph change if the function is y=x2+3y = \left\vert x - 2 \right\vert + 3?
  4. What happens to the graph if the function becomes y=2x2y = 2\left\vert x - 2 \right\vert?
  5. Can you find the x-intercepts and y-intercepts for the function y=x2y = \left\vert x - 2 \right\vert?

Tip: Understanding how the absolute value function affects the graph can help you quickly sketch the graph of similar functions.

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Math Problem Analysis

Mathematical Concepts

Algebra
Absolute Value Functions
Piecewise Functions
Graphing

Formulas

y = \left\vert x - 2 \right\vert
Piecewise Form: y = x - 2 for x ≥ 2; y = -x + 2 for x < 2

Theorems

Properties of Absolute Value Functions
Symmetry in Graphs

Suitable Grade Level

Grades 8-10