Math Problem Statement
Solution
The given equation is .
(a) Find the x-intercept:
To find the x-intercept, set and solve for : The absolute value equation is true when:
So, the x-intercept is .
(b) Determine where the graph is increasing and where it is decreasing:
The graph of an absolute value function like forms a V-shape. It has a vertex where the expression inside the absolute value equals zero:
- Increasing: For , the function increases because the slope of is positive.
- Decreasing: For , the function decreases as the slope is negative on this side of the vertex.
Graph Identification:
Given the V-shape nature of the graph and the vertex at , the correct graph should show a V with its vertex at . From the provided options (A, B, C, D), we need to select the graph that matches this description.
Based on the x-intercept and the shape of the graph around , the correct answer is Option D.
Would you like further details or have any questions about this solution?
Related Questions:
- What is the vertex form of an absolute value function?
- How do absolute value functions change when you alter the coefficients?
- How do you find the y-intercept of ?
- What is the general form of the graph of an absolute value function?
- How does the graph of compare to ?
Tip:
For absolute value functions of the form , the graph always has a V-shape with the vertex at the point where .
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Math Problem Analysis
Mathematical Concepts
Absolute Value Functions
Graphing
Intercepts
Increasing and Decreasing Functions
Formulas
y = |2x - 3|
Finding x-intercept by setting y = 0
Theorems
Absolute Value Function Theorem
Suitable Grade Level
Grades 9-12