Math Problem Statement

Identify the x- and y-intercepts of the functions graphed below.

Solution

Let's analyze the graphs and determine the xx- and yy-intercepts for each of the given functions:

1. Graph 1:

  • xx-intercept(s): The graph touches the xx-axis at approximately x=3x = 3, so the xx-intercept is (3,0)(3, 0).
  • yy-intercept: The graph crosses the yy-axis at approximately y=2y = 2, so the yy-intercept is (0,2)(0, 2).

2. Graph 2:

  • xx-intercept(s): The graph crosses the xx-axis at three points: x=3x = -3, x=1x = -1, and x=1x = 1. So, the xx-intercepts are (3,0),(1,0),(1,0)(-3, 0), (-1, 0), (1, 0).
  • yy-intercept: The graph crosses the yy-axis at approximately y=1y = -1, so the yy-intercept is (0,1)(0, -1).

3. Graph 3:

  • xx-intercept(s): The graph does not touch or cross the xx-axis, so there are no xx-intercepts.
  • yy-intercept: The graph crosses the yy-axis at approximately y=0y = 0, so the yy-intercept is (0,0)(0, 0).

4. Graph 4:

  • xx-intercept(s): The graph touches the xx-axis at x=2x = -2 and x=2x = 2, so the xx-intercepts are (2,0),(2,0)(-2, 0), (2, 0).
  • yy-intercept: The graph crosses the yy-axis at approximately y=4y = 4, so the yy-intercept is (0,4)(0, 4).

5. Graph 5:

  • xx-intercept(s): The graph crosses the xx-axis at x=2x = -2 and x=2x = 2, so the xx-intercepts are (2,0),(2,0)(-2, 0), (2, 0).
  • yy-intercept: The graph crosses the yy-axis at approximately y=1y = -1, so the yy-intercept is (0,1)(0, -1).

6. Graph 6:

  • xx-intercept(s): The graph does not touch or cross the xx-axis, so there are no xx-intercepts.
  • yy-intercept: The graph does not cross the yy-axis, so there is no yy-intercept.

Would you like further details or clarifications?

Here are five related questions to deepen your understanding:

  1. How do you find the xx- and yy-intercepts algebraically from an equation?
  2. Why do some graphs have no xx- or yy-intercepts?
  3. How can symmetry of a graph help in identifying intercepts?
  4. What are the characteristics of a function with multiple xx-intercepts?
  5. How do vertical and horizontal asymptotes affect the intercepts of a graph?

Tip: The xx-intercept is found when y=0y = 0, and the yy-intercept is found when x=0x = 0. Always substitute these values into the function to verify the intercepts algebraically.

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Math Problem Analysis

Mathematical Concepts

Graphing Functions
x-intercept
y-intercept

Formulas

x-intercept occurs when y = 0
y-intercept occurs when x = 0

Theorems

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Suitable Grade Level

Grades 9-12