Question

Name the axis to which major axis is parallel and find the center of 9(x + 1)² + 27(y - 1)² = 81

Answer 1

divide each term by 81 to get

(x+1)^2/9 + (y-1)^2/3 = 1

so a = 3, and b = √3, which means that the major axis is parallel to the x-axis

(since a > b)

Answer 2

Okay, thank you Reiny :)

Answer 3

Name the axis to which the major axis is parallel and find the center of 9(x+1)^2 + 27(y-1)^2 = 81