Math Problem Statement
Solve this one
Solution
The question in the image asks about the point where the graph of the function intersects the y-axis and how far it is from the first and third quadrants.
Step-by-Step Solution:
1. Understanding the Function :
- behaves differently depending on the sign of .
- If , then .
- If , then .
Thus, we can write the function in two parts based on the sign of :
-
For :
-
For :
2. Finding the Intercept with the Y-axis:
To find where the function intersects the y-axis, we set :
- .
Thus, the function intersects the y-axis at the point .
3. Checking Distance from First and Third Quadrants:
The problem asks for the distance between this point and the nearest point in the first and third quadrants. The first and third quadrants are where and have different signs:
- First quadrant: and .
- Third quadrant: and .
To calculate the distance between two points and , we use the distance formula:
However, since this problem offers multiple-choice answers and involves understanding the symmetry of the function across the axis, the correct answer corresponds to calculating distance with symmetry in mind (roots).
Correct Answer:
Based on the options provided, the correct distance should be:
Would you like a more detailed explanation of any step, or have any specific questions?
Related Questions:
- How do we calculate the y-intercept of any function?
- What is the effect of the absolute value function on graphs?
- How do piecewise functions behave when defined by absolute values?
- What role does the distance formula play in coordinate geometry problems?
- How do we find intersections of graphs with the x-axis or y-axis?
Tip: When dealing with absolute value functions, always break the problem into cases based on the sign of the variable inside the absolute value.
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Math Problem Analysis
Mathematical Concepts
Absolute Value
Linear Functions
Piecewise Functions
Distance Formula
Formulas
f(x) = 2x - |x| + 3
Distance Formula: d = sqrt((x2 - x1)^2 + (y2 - y1)^2)
Theorems
Properties of Absolute Value
Symmetry in Piecewise Functions
Suitable Grade Level
Grades 9-12