Question

Graph x2 + 9y2 = 25. What are the domain and range? Someone please help me ! (Picture below)

Answer 1

X^2 + 9y^2 = 25
x^2/5^2 + (3y)^2/5^2 = 1

This represent an equation of an ellipse with cente at the origin, the horizontal major axis running from -5 to 5 and vertical minor axis running from -5/3 to 5/3

The third graph is the correct answer.