Math Problem Statement

The graph shows g(x), which is a translation of f(x)=x2. Write the function rule for g(x). Write your answer in the form a(x–h)2+k, where a, h, and k are integers or simplified fractions. g(x)= vertex (0,-1)

Solution

The given graph shows g(x)g(x), which is a translation of the parent function f(x)=x2f(x) = x^2. The general form of the function is:

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

Where:

  • hh is the horizontal shift (from the vertex (h,k)(h, k)).
  • kk is the vertical shift.
  • aa determines the vertical stretch or compression.

From the vertex (0,1)(0, -1):

  • h=0h = 0 (no horizontal shift),
  • k=1k = -1 (shifted down by 1 unit).

Assuming a=1a = 1 (no vertical stretch/compression or reflection), the function rule is:

g(x)=(x0)21=x21g(x) = (x - 0)^2 - 1 = x^2 - 1

If you'd like to confirm the value of aa or delve further, let me know!


Do you want a detailed step-by-step explanation or graph comparison?
Here are 5 related questions for deeper exploration:

  1. How do you find aa if g(x)g(x) is not simply stretched/compressed?
  2. What happens to the graph of f(x)=x2f(x) = x^2 when hh or kk changes?
  3. How would aa affect the width or direction of the parabola?
  4. How do you verify a transformation using points from the graph?
  5. Can we graph g(x)=x21g(x) = x^2 - 1 and compare it to f(x)=x2f(x) = x^2?

Tip: Always check the vertex and one more point to ensure accuracy in transformations!

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Math Problem Analysis

Mathematical Concepts

Algebra
Quadratic Functions
Graph Transformations

Formulas

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

Theorems

Vertex Form of a Quadratic Function

Suitable Grade Level

Grades 9-10