A) None
B) Are all the values in X and Y
C) Are all the values in X
D) Are all the values in X

A) Are all the values in X and Y
B) All the values in Y
C) Are all the values in X

A) Because has a hole
B) Because has a Asymptote
C) None
D) Because has a jump
E) Because of symmetry

A) ] - ∞, + ∞ [
B) R
C) Both are correct

A) All of them are correct
B) ]-∞, -3] U [3,+ ∞[
C) ]-∞, -3] U [-3,+ ∞[
D) ]-∞, 3] U [3,+ ∞[

A) Decreasing from (-∞,1/2) and increasing (1/2,+ ∞)
B) Decreasing
C) Increasing
D) Decreasing from (-∞,1) and increasing (1,+ ∞)

A) Because a asymptote
B) Because of symmetry
C) None
D) Because of a jump
E) Because of a hole

A) Are the values that makes the denominator cero in a function
B) Is a term related to symmetry
C) Happens when a function doesn’t have interruptions

A) Both are correct
B) We graph and see the X axis
C) We graph and see the Y axis

A) No
B) Yes