end behavior is the extrememes
the plus and minus describe which side it is coming from
the first one
f(x) approaches +/- infinity as x aproaches +/-2
not clear enough, doesn't tell which way it approaches from and which coresponds with wich
not A.
b.
as f(x) approaches positive infinity, x approaches positive infinity
as f(x) approaches neagativeinifnity, x approaches neativ ininity
false, as x approaches negative and pos infinity, f(x) approaches y=1
not B.
c.
as x approaches 1, f(x) approaches initnify, false, since it doesn't specify from which side
as x approaches -1, f(x) appraches negative eininty false
not C
d.
as x aproaches negative and positivei nfinty, f(x) (or y) approaches 1
true
answer is D