Domain of Rational Expression

Find the domain of the function.  $f\left(x\right)=\frac{3x}{x^2-121}$  

•  $\left\{x\ne-6,5\right\}$  

•  $\left\{x\ne121\right\}$  

•  $\left\{x\ne11\right\}$  

•  $\left\{x\ne-11,11\right\}$  

State the domain restrictions. 

• x ≠ -2
• x ≠ 2, 1
• x ≠ 2, -1
• x ≠ -2, 2, 1

Tags

CCSS.HSA.APR.D.7

State the domain restrictions.

• x ≠ 3, -2, 6, -1
• x ≠ -1, 6
• x ≠ 3, -2
• No Domain Restrictions

Tags

CCSS.HSA.APR.D.7

CCSS.HSA.CED.A.3

Find the excluded value(s).

• n = 0

• n = 24

• n = -24

• n can be any real number

Tags

CCSS.HSA.APR.D.7

Find the excluded value(s).

• a = 0

• a = 10

• a = 1

• a = -1

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

Find the excluded value(s).

• v = 5

• v = 10

• v = -25

• v = -5

Tags

CCSS.HSA.APR.D.7

What are the domain restrictions of the following rational expression:

• x ≠ 4

• x ≠ -4, 4

• x ≠ -16, 16

• x ≠ 0, 4

Tags

CCSS.HSA.APR.D.7

What value(s) make the expression undefined?

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

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.APR.D.7

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

• 8, -10
• 8, 9
• -8, 10
• -8, -9

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.APR.D.7

What is an excluded value?

• A value that makes the denominator equal to 0

• A number that makes the numerator equal to 0

• The solution

• An ostracized number

Tags

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7