Math Problem Statement

Which of the following graphs would represent the quadratic function ? y=(x+4)squared plus 2

Which of the following graphs would represent the quadratic function y=(x+4)^2 + 2?

Solution

The equation you're working with is:

y=(x+4)2+2y = (x + 4)^2 + 2

This is a quadratic equation in vertex form. The general form of a quadratic equation is y=a(xh)2+ky = a(x-h)^2 + k, where (h,k)(h, k) is the vertex of the parabola.

From the equation y=(x+4)2+2y = (x + 4)^2 + 2, we can deduce that:

  • The vertex of the parabola is at (4,2)(-4, 2).
  • Since the coefficient of (x+4)2(x + 4)^2 is positive (it’s 1), the parabola opens upwards.

Now, comparing the two graphs:

  • The first graph has a vertex at (4,2)(-4, 2) and opens upwards, which matches the equation given.
  • The second graph has a vertex at (2,2)(-2, 2), which does not match the given equation.

Therefore, the first graph represents the quadratic function y=(x+4)2+2y = (x + 4)^2 + 2.

Would you like further explanation or have additional questions on this?

Here are some related questions you might find helpful:

  1. How can I find the vertex of any quadratic equation?
  2. What happens when the coefficient of (x+h)2(x + h)^2 in a quadratic equation is negative?
  3. How do you determine the direction of the parabola (up or down)?
  4. How can you determine the equation of a quadratic function from a graph?
  5. How does the form of a quadratic function relate to its graph?

Tip: You can always find the vertex of a quadratic function written in standard form ax2+bx+cax^2 + bx + c by using the formula x=b2ax = \frac{-b}{2a} to find the x-coordinate, and then substitute it into the function to find the y-coordinate.

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Math Problem Analysis

Mathematical Concepts

Quadratic Functions
Vertex Form of Quadratic Equations
Parabolas

Formulas

y = a(x - h)^2 + k
y = (x + 4)^2 + 2

Theorems

Vertex of a Parabola
Shape and Direction of a Parabola

Suitable Grade Level

Grades 8-10