Math Problem Statement

Use transformations of f(x) = x^2 to graph the function g(x) = -2(x + 3)^2 + 1.

Solution

The problem is asking for the transformations required to graph g(x)=2(x+3)2+1g(x) = -2(x + 3)^2 + 1 using the base function f(x)=x2f(x) = x^2.

Let's break down the transformations:

  1. Shift the graph horizontally to the left by 3 units:

    • The term (x+3)(x + 3) inside the square indicates a horizontal shift 3 units to the left.
  2. Vertical reflection:

    • The negative sign in front of the 2, 2(x+3)2-2(x + 3)^2, reflects the graph about the x-axis.
  3. Vertical stretch by a factor of 2:

    • The factor of 2 in front of (x+3)2(x + 3)^2 stretches the graph vertically by a factor of 2.
  4. Shift the graph vertically upward by 1 unit:

    • The constant +1+1 at the end shifts the graph up by 1 unit.

Given this breakdown, the correct transformations are:

  • A: Shift the graph 3 units to the left.
  • B: Shift the graph 1 unit up (this option is correct but labeled incorrectly in the image; "down" should be "up").
  • E: Reflect the graph about the x-axis.
  • F: Stretch the graph vertically by a factor of 2.

Let me know if you'd like more details or explanations!


Here are 5 related questions for deeper understanding:

  1. What happens if the graph is shifted 3 units to the right instead of left?
  2. How does a horizontal stretch affect the graph of a quadratic function?
  3. What is the effect of a vertical compression on the graph of f(x)=x2f(x) = x^2?
  4. How would the graph change if the constant was 1-1 instead of +1+1?
  5. How does a horizontal reflection differ from a vertical reflection?

Tip: Always check the signs inside and outside the parentheses to determine whether a graph shifts left or right, and whether it stretches or compresses.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Function Transformations
Quadratic Functions
Graphing

Formulas

Standard quadratic function f(x) = x^2
Transformation formula for shifts: g(x) = a(x - h)^2 + k

Theorems

Horizontal shifts: (x + 3) shifts the graph left by 3 units
Vertical shifts: +1 shifts the graph up by 1 unit
Reflection across the x-axis: the negative sign before the 2
Vertical stretch: multiplying by 2 stretches the graph vertically

Suitable Grade Level

Grades 9-12