Precalculus Complex Zeros Rational Functions

Find the horizontal asymptote.
4x-16
_______
x²-16

• y=2

• y=1

• y=0

• none

What is the domain? 

• all real numbers except -5 and 5

• all real numbers except -5 and 4

• all real numbers except -4 and 5

• all real numbers except -4 and -5

Find the x-intercept.
x²+x-6
_________
x+4

• (2,0) and (3,0)

• (-2,0 and (-3,0)

• (2,0 and (-3,0)

• (4,0) 

• None
• x = -4
• x = 3
• x = 4

• A

• B

• C

• D

• A

• B

• C

• D

What is the equation of the horizontal asymptote?

• y = 0

• y = -2

• y = 2

• There isn't one

• 1
• 2
• 3
• 4

• A

• B

• C

• D

• x = 2 only

• x = 0 and x = 2 only

• x = 0 and x = 3 only

• x = 0, x = 2, and x = 3