Math Problem Statement

In the following exercise, find the coordinates of the vertex for the parabola defined by the quadratic function f(x) = -2(x + 4)^2 + 3.

Solution

The quadratic function given in the image is:

f(x)=2(x+4)2+3f(x) = -2(x + 4)^2 + 3

This equation is in vertex form, which is:

f(x)=a(xh)2+kf(x) = a(x - h)^2 + k

In this form, (h,k)(h, k) represents the coordinates of the vertex of the parabola.

Comparing the given equation:

  • (x+4)2(x + 4)^2 means h=4h = -4 (since it's x(4)x - (-4)).
  • The constant +3+3 indicates k=3k = 3.

Thus, the vertex of the parabola is:

(4,3)(-4, 3)

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

Here are 5 related questions you could explore:

  1. How does changing the value of aa affect the shape of a parabola?
  2. What does the vertex form of a quadratic equation tell us about the graph?
  3. How would the vertex change if the equation were f(x)=2(x4)2+3f(x) = -2(x - 4)^2 + 3?
  4. How do we convert a quadratic equation in standard form to vertex form?
  5. How does the sign of aa (positive or negative) influence the direction of the parabola?

Tip: The value of aa determines the "width" and direction (upward or downward) of the parabola.

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Math Problem Analysis

Mathematical Concepts

Algebra
Quadratic Functions
Parabolas

Formulas

Vertex form of a parabola: f(x) = a(x - h)^2 + k

Theorems

Vertex form theorem: The vertex of a parabola y = a(x - h)^2 + k is (h, k)

Suitable Grade Level

Grades 9-11