Math Problem Statement

Describe the transformation of f(x) = x^2 represented by g(x) = (x + 5)^2 + 1. Identify the graph of each function.

Solution

We are given two functions:

  • f(x)=x2f(x) = x^2, which is a basic parabola.
  • g(x)=(x+5)2+1g(x) = (x + 5)^2 + 1, which is a transformation of f(x)f(x).

Describing the Transformation:

  • The term (x+5)(x + 5) indicates a horizontal translation. The graph is shifted 5 units to the left.
  • The +1+1 indicates a vertical translation. The graph is shifted 1 unit up.

So, the graph of g(x)g(x) is a translation 5 units left and 1 unit up from the graph of f(x)f(x).

Identifying the Graph:

Looking at the options in the image:

  • We need to find the graph where g(x)g(x) (the red parabola) is 5 units to the left and 1 unit higher than f(x)f(x) (the blue parabola).

By analyzing the provided graphs:

  • The third graph (bottom left) shows the red graph g(x)g(x) shifted 5 units to the left and 1 unit up from the blue graph f(x)f(x), which matches the transformation.

Thus, the correct graph is the third one (bottom left).

Would you like more details on transformations or help with another problem?

Related Questions:

  1. How do you find the vertex of a transformed quadratic function?
  2. What is the effect of adding a constant outside the parentheses on the graph of a function?
  3. What other types of transformations can be applied to f(x)=x2f(x) = x^2?
  4. How do horizontal and vertical translations affect the domain and range of the function?
  5. Can you describe the reflection of f(x)=x2f(x) = x^2 across the x-axis or y-axis?

Tip:

Always remember that a transformation inside the parentheses (e.g., (x+5)(x + 5)) affects the graph horizontally, while a transformation outside (e.g., +1+1) affects the graph vertically.

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Math Problem Analysis

Mathematical Concepts

Algebra
Function Transformations
Quadratic Functions

Formulas

f(x) = x^2
g(x) = (x + 5)^2 + 1

Theorems

Transformation of functions

Suitable Grade Level

Grades 8-10