Math Problem Statement

Fill in the table using the function rule \( f(x) = \sqrt{x - 8} \). Simplify your answers as much as possible. Click 'Not a real number' if applicable.

Solution

The function given is f(x)=x8f(x) = \sqrt{x - 8}. Let's compute f(x)f(x) for each xx-value in the table:

  1. For x=8x = 8: f(8)=88=0=0f(8) = \sqrt{8 - 8} = \sqrt{0} = 0

  2. For x=44x = 44: f(44)=448=36=6f(44) = \sqrt{44 - 8} = \sqrt{36} = 6

  3. For x=57x = 57: f(57)=578=49=7f(57) = \sqrt{57 - 8} = \sqrt{49} = 7

  4. For x=72x = 72: f(72)=728=64=8f(72) = \sqrt{72 - 8} = \sqrt{64} = 8

Results to fill in the table:

  • When x=8x = 8, f(x)=0f(x) = 0.
  • When x=44x = 44, f(x)=6f(x) = 6.
  • When x=57x = 57, f(x)=7f(x) = 7.
  • When x=72x = 72, f(x)=8f(x) = 8.

Let me know if you want more details or have any questions!


Related Questions:

  1. How is the domain of f(x)=x8f(x) = \sqrt{x - 8} determined?
  2. What would f(x)f(x) equal if x=7x = 7?
  3. How does the graph of f(x)=x8f(x) = \sqrt{x - 8} compare to f(x)=xf(x) = \sqrt{x}?
  4. What is the range of f(x)f(x) for the given xx-values?
  5. How do you simplify square roots of non-perfect squares, if xx had values like 1010 or 2020?

Tip:

For square root functions, ensure the expression inside the square root (x8x - 8) is non-negative to find valid xx-values.

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Math Problem Analysis

Mathematical Concepts

Functions
Square Root Functions
Domain of a Function

Formulas

\( f(x) = \sqrt{x - 8} \)

Theorems

Domain and Range of Square Root Functions

Suitable Grade Level

Grades 9-10