Question

Which equation does the graph represent?

A. x^2 + y^2 = 4

B. x^2/3^2 + y^2/4^2 = 1

C. (X - 1)^2 / 3^2 + y^2/4^2 = 1

D.X^2 / 4^2 + (y + 1)^2 / 3^2 = 1

Answer 1

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Answer:

B. x^2/3^2 + y^2/4^2 = 1

Explanation:

The graph looks like a circle, but is not. It is a unit circle scaled by a factor of 3 in the x-direction and a factor of 4 in the y-direction. Thus, its equation is ...

(x/3)^2 +(y/4)^2 = 1

x^2/3^2 +y^2/4^2 = 1