Math Problem Statement

A parabola is shown below. Its vertex and another point on the parabola are labeled. Write an equation of the parabola.

Solution

To find the equation of the parabola shown in the image, we can proceed with the following steps. The given information includes:

  • The vertex of the parabola at (2,3)(-2, 3).
  • Another point on the parabola at (4,5)(-4, -5).

Since the vertex is given, we can use the vertex form of a parabolic equation:

y=a(xh)2+ky = a(x - h)^2 + k

where (h,k)(h, k) is the vertex of the parabola. Here, (h,k)=(2,3)(h, k) = (-2, 3), so we can substitute these values:

y=a(x+2)2+3y = a(x + 2)^2 + 3

Now, we can use the other point (4,5)(-4, -5) to solve for the value of aa.

Step 1: Substitute (4,5)(-4, -5) into the equation

Substituting x=4x = -4 and y=5y = -5 into the equation gives:

[ -5 = a(-4 +

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Math Problem Analysis

Mathematical Concepts

Parabolas
Vertex Form
Quadratic Functions

Formulas

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

Theorems

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Suitable Grade Level

Grades 9-11