Graphing a curve with a given equation

Published on November 27, 2024

Geometry

The equation represents an ellipse centered at (-2, 0) with a vertical major axis of length 4 and a horizontal minor axis of length 2.

Question

Answer

Here’s how to solve the problem and graph the curve:
1. Group the x terms:
2. Complete the square for the x terms:
First, factor out the coefficient of from the x terms:
Now, take half of the coefficient of the x term inside the parenthesis (which is 4), square it (which gives 4), and add and subtract it inside the parenthesis:
3. Rewrite the x terms as a perfect square:
4. Simplify and rearrange the equation:
5. Divide both sides by 4 to get the standard form of an ellipse equation:
6. Analyze the equation:
This is the equation of an ellipse centered at . The semi-major axis is along the y-axis, and the semi-minor axis is along the x-axis.
7. Graph the ellipse:
The ellipse is centered at . It extends 2 units up and down along the y-axis and 1 unit left and right along the x-axis. You can sketch the ellipse using these points:
  • Center:
  • Vertices: and
  • Co-vertices: and
The graph will be an ellipse elongated vertically, centered at (-2, 0).