Math Problem Statement

F(x) =4x2\sqrt{4-x^2}

Solution

The function you provided is:

F(x)=4x2F(x) = \sqrt{4 - x^2}

Domain of the function:

To determine the domain of the function F(x)F(x), we need to ensure that the expression inside the square root is non-negative, since the square root of a negative number is not defined in the set of real numbers.

4x204 - x^2 \geq 0

Solving this inequality:

4x22x24 \geq x^2 \quad \Rightarrow \quad -2 \leq x \leq 2

Thus, the domain of F(x)F(x) is x[2,2]x \in [-2, 2].

Range of the function:

Since the function involves a square root, the output will always be non-negative. The maximum value occurs when x=0x = 0, which gives:

F(0)=402=4=2F(0) = \sqrt{4 - 0^2} = \sqrt{4} = 2

The minimum value occurs when x=±2x = \pm 2, which gives:

F(±2)=422=0=0F(\pm 2) = \sqrt{4 - 2^2} = \sqrt{0} = 0

Thus, the range of the function is [0,2][0, 2].

Conclusion:

  • Domain: [2,2][-2, 2]
  • Range: [0,2][0, 2]

Would you like more details on this function, such as its graph or properties?

Here are 5 related questions you could explore:

  1. How do you graph the function F(x)=4x2F(x) = \sqrt{4 - x^2}?
  2. What is the derivative of F(x)=4x2F(x) = \sqrt{4 - x^2}?
  3. How do you find the area under the curve of F(x)F(x) between 2-2 and 22?
  4. Can you describe the geometric shape represented by F(x)=4x2F(x) = \sqrt{4 - x^2}?
  5. How would the function change if you modified the equation to 9x2\sqrt{9 - x^2}?

Tip: Always check the domain restrictions for square roots and rational functions to ensure the expression is valid for all inputs.

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Math Problem Analysis

Mathematical Concepts

Functions
Square Roots
Inequalities

Formulas

F(x) = \sqrt{4 - x^2}
Inequality: 4 - x^2 ≥ 0

Theorems

Domain and Range Theorem for functions

Suitable Grade Level

Grades 9-11