Domain Exclusions for Rational Expressions

Find the non-permissible value(s).

• n = 0

• n = 24

• n = -24

• n can be any real number

Find the non-permissible value(s).

• a = 0

• a = 10

• a = 1

• a = -1

Determine the non-permissible value of x. Record your answer as a decimal to the nearest tenth.

Find the non-permissible value(s).

• v = 5

• v = 10

• v = -25

• v = -5

What are the domain restrictions of the following rational expression:

• x ≠ 4

• x ≠ -4, 4

• x ≠ -16, 16

• x ≠ 0, 4

What value(s) make the expression undefined?

• x = - 3 and x = 4
• x = 3 and x = - 4
• x = 3 only
• x = - 4 only

State the excluded (undefined) values for the given expression.

• 8, -10
• 8, 9
• -8, 10
• -8, -9

What is a non-permissible value?

• A value that makes the denominator equal to 0

• A number that makes the numerator equal to 0

• The solution

• An ostracized number

Determine the non-permissible value of x. Record your answer as a decimal to the nearest tenth.

Which value of x makes the expression undefined?

• 3
• -2
• -3
• 5