Math Problem Statement

Describe how the graph of function f(x) = x^2 can be transformed to the graph of the function g(x) = 2(x - 6)^2 - 9.

Solution

The question asks to describe how the graph of the function f(x)=x2f(x) = x^2 can be transformed into the graph of the function g(x)=2(x6)29g(x) = 2(x - 6)^2 - 9.

Step-by-step breakdown of the transformation:

  1. Horizontal shift: The term (x6)(x - 6) indicates a shift to the right by 6 units. This happens because subtracting 6 from xx shifts the graph right.

  2. Vertical shift: The term 9-9 indicates a shift down by 9 units. This is because subtracting 9 from the function translates it downward.

  3. Vertical stretch: The coefficient 2 outside of the squared term indicates a vertical stretch by a factor of 2. This makes the graph narrower as the y-values are scaled up by 2.

Now, looking at the choices:

  • Option 1: Shift the graph left 6 units, down 9 units, and stretch vertically. (Incorrect: It should be a right shift, not left).

  • Option 2: Shift the graph up 6 units, right 9 units, and compress horizontally. (Incorrect: It should be down 9 units, right 6 units, and a vertical stretch, not a horizontal compression).

  • Option 3: Shift the graph down 6 units, left 9 units, and stretch horizontally. (Incorrect: The shifts and stretch direction are incorrect).

  • Option 4: Shift the graph right 6 units, down 9 units, and stretch vertically. (Correct: This accurately describes the transformations).

Conclusion:

The correct answer is Option 4.

Would you like more details on this or have any further questions?

Related questions:

  1. What happens to the graph when the function is multiplied by a fraction?
  2. How does changing the sign of the xx-term inside a square affect the graph?
  3. How can we describe a reflection over the x-axis or y-axis using transformations?
  4. What is the impact of adding a constant inside and outside the square term in a quadratic function?
  5. How would the transformation change if the coefficient outside the squared term were negative?

Tip:

When analyzing transformations, pay close attention to signs and coefficients—they determine the direction and type of shifts or stretches.

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Math Problem Analysis

Mathematical Concepts

Graph Transformations
Quadratic Functions
Vertical Stretch
Horizontal and Vertical Shifts

Formulas

g(x) = a(x-h)^2 + k

Theorems

Transformation of Quadratic Functions

Suitable Grade Level

Grades 9-12