Math Problem Statement

Graph the function h(x) = sqrt(x - 2) by using the techniques of shifting, compressing, stretching, and reflecting. Find the domain and range of the function.

Solution

The problem in the image is asking you to graph the function h(x)=x2h(x) = \sqrt{x - 2} by applying transformations to the base function f(x)=xf(x) = \sqrt{x}. It also asks to find the domain and range of the function.

Step-by-Step Solution:

  1. Base Function: The basic function is f(x)=xf(x) = \sqrt{x}. The graph of this function starts at (0,0)(0,0) and increases to the right, being defined only for x0x \geq 0.

  2. Transformation: The function h(x)=x2h(x) = \sqrt{x - 2} represents a horizontal shift of the base function x\sqrt{x} to the right by 2 units. The transformation here is x2x - 2, which shifts the graph 2 units to the right.

    • Shift: Every point on the graph of x\sqrt{x} moves right by 2 units.
  3. Domain: Since the square root function x2\sqrt{x - 2} is only defined when x20x - 2 \geq 0, we solve: x20x2x - 2 \geq 0 \quad \Rightarrow \quad x \geq 2 So, the domain is [2,)[2, \infty).

  4. Range: The square root function always produces non-negative values. So the range remains [0,)[0, \infty).

Correct Graph:

The graph of h(x)=x2h(x) = \sqrt{x - 2} starts at (2,0)(2, 0) and rises to the right. This matches Option D from the multiple-choice options shown in the image.

Would you like more details or have any other questions?

Related Questions:

  1. What happens to the graph of x\sqrt{x} if you replace xx with x+3x + 3?
  2. How does a vertical stretch affect the graph of f(x)=xf(x) = \sqrt{x}?
  3. How do you find the domain of a general square root function g(x)\sqrt{g(x)}?
  4. What is the effect of a vertical shift on a square root function?
  5. How do you reflect the graph of a square root function across the x-axis?

Tip: For transformations, always remember that changes inside the function (with xx) affect the graph horizontally, while changes outside affect it vertically.

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Math Problem Analysis

Mathematical Concepts

Function Transformation
Square Root Functions

Formulas

h(x) = sqrt(x - 2)
Domain: x - 2 >= 0
Range: y >= 0

Theorems

Transformation Theorem (Horizontal Shift)
Domain and Range Theorems for Functions

Suitable Grade Level

Grades 9-11