Math Problem Statement
Use the graph of the function f to solve the inequality. (a) f(x) > 0
Solution
The question asks you to find the solution set where based on the provided graph.
Steps to solve:
- Interpret the graph: We need to look for the intervals where the function is above the x-axis, as that represents .
- Critical points: The function crosses the x-axis at , , and . These are points where , so these will help define the boundaries of the intervals.
- Check the intervals:
- Between and , the graph is above the x-axis, so .
- Between and , the graph is below the x-axis, so .
- After , the graph is again above the x-axis, so .
Solution in interval notation:
For , the intervals where the graph is above the x-axis are:
Let me know if you'd like more details or have any questions!
Related questions:
- How do you solve inequalities graphically in general?
- What does it mean for a function to be greater than or less than 0 in different intervals?
- How can you use the derivative of a function to determine where it is positive or negative?
- How do you write compound inequalities in interval notation?
- What is the difference between open and closed intervals in solutions?
Tip: Always identify where the graph crosses the x-axis to determine changes in the sign of .
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Math Problem Analysis
Mathematical Concepts
Graphical Inequality
Functions
Interval Notation
Formulas
f(x) > 0
Theorems
Zero Crossing Theorem
Suitable Grade Level
Grades 10-12