Math Problem Statement
How do you find the x intercept of absolute value
Solution
To find the -intercept of an absolute value function, you follow these steps:
1. Set the Function Equal to Zero:
The -intercept is where the function crosses the -axis, meaning the output (or -value) is zero. For an absolute value function , set the function equal to zero:
2. Solve the Equation Inside the Absolute Value:
The absolute value of a number is zero only when the number itself is zero. So, solve the equation inside the absolute value for :
3. Determine the -Intercept:
Solve the equation to find the value(s) of . The solution(s) will be the -intercept(s) of the absolute value function.
Example:
Let's consider the function .
-
Set the function equal to zero:
-
Solve the equation inside the absolute value:
-
Solve for :
The -intercept is at . So, the -intercept is the point .
Would you like more details on this process or have any further questions?
Here are 5 related questions you might consider:
- How do you graph an absolute value function and identify its vertex?
- What happens to the graph of an absolute value function when you change its coefficients?
- How do you find the vertex of an absolute value function?
- Can an absolute value function have more than one -intercept?
- How do you solve absolute value inequalities?
Tip: When solving absolute value equations, always consider checking for extraneous solutions, especially if the equation involves squaring both sides.
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Math Problem Analysis
Mathematical Concepts
Algebra
Absolute Value Functions
Formulas
|f(x)| = 0
f(x) = 0
Theorems
Properties of Absolute Value
Suitable Grade Level
Grades 8-10
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