Finding Domain of Rational Functions

What is the domain of the rational function?

Find the domain of the rational function f(x) = x / (x²-25)

• (- infinity, -5) U (5, infinity)

• (-infinity, -5) U (-5, 5) U (5, infinity)

• (- infinity, 5) U (5, infinity)

• (- infinity, 25) U (25, infinity)

What is the domain?

• (-∞, ∞)

• (-∞, 0) U (0, ∞)

• (-∞, -3) U (3, ∞)

• (-∞, -3) U (-3, 3) U (3, ∞)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the domain?

• (-∞, ∞)

• (-∞, 1) U (1, ∞)

• (-∞, -2) U (-2, 2) U (2, ∞)

• (-2, 2)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the domain of the following function: f(x)=3/(x+2)

• (-∞,-2)U(2,∞)

• (-∞,-2)U(-2,∞)

• (-∞,2)U(2,∞)

• (-∞,∞)

What is the domain of the following function:

f(x)=(x-3)/(x²+4)

• (-∞,-2)U(-2,2)

  U(2,∞)

• (-∞,-2)U(2,∞)

• (-∞,3)U(3,∞)

• (-∞,∞)

Find the domain of the function.
x
__________
x²-4x-12

• (-∞,-2) u (-2,6) u (6, ∞)

• (-2,6)

• (-∞,2) u (2,6) u (6, ∞)

• (-∞,2) u (6 ,∞)

State the vertical asymptote: f(x)=(x-2)/(x+5).

• x = -2/5

• x = -5/2

• x = -5

• x = 2

Tags

CCSS.HSF-IF.C.7D

Find the vertical asymptote(s).

• x = 3 and x = -7

• x = 3

• x = -7

• x = -4

Tags

CCSS.HSF-IF.C.7D

Find the vertical asymptote(s).

• x = 1 and x = -1

• x = 1

• x = -1

• x = 0

Tags

CCSS.HSF-IF.C.7D