Final answer:
To sketch the graph of the equation 21x² + 10√3xy + 31y² = 144, we need to identify the type of curve it represents. This equation is a quadratic equation in two variables x and y, and it represents a conic section known as an ellipse. To sketch the graph, we can use the properties of ellipses.
Step-by-step explanation:
To sketch the graph of the equation 21x² + 10√3xy + 31y² = 144, we need to identify the type of curve it represents. This equation is a quadratic equation in two variables x and y, and it represents a conic section known as an ellipse. To sketch the graph, we can use the properties of ellipses.
- First, rewrite the given equation in standard form by completing the square for x and y.
- Then, determine the center, length of major and minor axes, and the eccentricity of the ellipse.
- Finally, plot the center, axes, and sketch the ellipse accordingly.