Math Problem Statement

Graph the equation y = (x + 2)^2 + 5 by transforming the given graph of the parent function.

Solution

The equation given is:

y=(x+2)2+5y = (x + 2)^2 + 5

This is a transformed version of the parent function y=x2y = x^2, which is a standard parabola opening upwards. Here’s how each part of the equation affects the graph:

  1. Horizontal Shift: The (x+2)(x + 2) inside the square indicates a horizontal shift. Since it’s (x+2)(x + 2), the graph shifts 2 units to the left.
  2. Vertical Shift: The +5+ 5 outside the square moves the graph 5 units up.

As a result, the vertex of the parabola, which is normally at (0,0)(0, 0) for y=x2y = x^2, is now at (2,5)(-2, 5).

The transformed graph should show a parabola opening upwards with its vertex at (2,5)(-2, 5).

Would you like a further breakdown of these transformations or have any specific questions?


Here are some related questions:

  1. What is the effect of a negative sign in front of the squared term, such as in y=(x+2)2+5y = -(x+2)^2 + 5?
  2. How would the graph change if we had (x2)2+5(x - 2)^2 + 5 instead?
  3. What happens if we add a coefficient to the squared term, like y=2(x+2)2+5y = 2(x+2)^2 + 5?
  4. How does the vertex form of a parabola help in quickly identifying transformations?
  5. Can we rewrite y=(x+2)2+5y = (x + 2)^2 + 5 in standard form?

Tip: When graphing transformations, start with the vertex shift and then apply other transformations like stretching or reflecting.

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Math Problem Analysis

Mathematical Concepts

Graph Transformations
Quadratic Functions
Vertex Form

Formulas

y = (x - h)^2 + k for vertex form of a parabola

Theorems

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Suitable Grade Level

Grades 9-10