Consider the function f(x) =9 - x^2/x^2 -4

For which intervals is f(x) positive? Check all that apply.

(-infinity, -3)
(-3, -2)
(-2, 2)
(2, 3)
(infinity, 3)

PLEASE HELP

answer is:

1.75 pounds

no because after the troops were pulled many blacks were killed by hangings lynchings and other cruel ways which in a way interrupted the reconstruction of the south and differed from the way abraham lincoln had an idea of reconstruction

answer:

c) the x-coordinate of the center of the circle increases by 3