Math Problem Statement

Write the equation of the graph shown, with the vertex (-3, -2).

Solution

The graph shown appears to depict a V-shaped structure, likely representing an absolute value function. The vertex is indicated as (3,2)(-3, -2).

The general form of an absolute value function is:

y=axh+ky = a|x - h| + k

Where:

  • (h,k)(h, k) is the vertex of the graph.
  • aa controls the slope or steepness of the graph, and whether it opens upwards (if a>0a > 0) or downwards (if a<0a < 0).

Given that the vertex is at (3,2)(-3, -2), we can substitute h=3h = -3 and k=2k = -2 into the equation:

y=ax+32y = a|x + 3| - 2

Next, we need to determine the value of aa by analyzing the slope of the lines on the graph. From visual inspection, the slope on one side of the V appears to be negative, and on the other side, it appears positive. The slope seems to be 1-1 and 11 respectively, so a=1a = 1 (the absolute value of the slope).

Thus, the equation of the graph is:

y=x+32y = |x + 3| - 2

Let me know if you would like further clarification or details!

Here are 5 related questions to deepen understanding:

  1. How would the equation change if the graph opened downwards?
  2. What role does the value of aa play in the shape of the absolute value graph?
  3. How can we find the slope from an absolute value graph without a given vertex?
  4. Can the vertex form apply to other types of functions, such as parabolas?
  5. How can the equation of a graph be derived if it is a shifted or stretched absolute value function?

Tip: When identifying vertex form equations, always start by locating the vertex and then assess the slope to determine the correct coefficient aa.

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Math Problem Analysis

Mathematical Concepts

Absolute Value Function
Vertex Form

Formulas

y = a|x - h| + k

Theorems

Slope Formula

Suitable Grade Level

Grades 9-10