Lesson 8.9 quizizz

Simplify the following rational expression.

Which values of y make the expression undefined?

(What are the excluded variables?)

Choose all answers that apply:

• y = 7

• y = 2

• y = 0

• none of the above

Simplify the following rational expression.

Which values of z make the expression undefined?

(What are the excluded variables?)

Choose all answers that apply:

• z = -2

• z = 0

• z = 2

• none of the above

Simplify the following rational expression.

Which values of k make the expression undefined?

(What are the excluded variables?)

Choose all answers that apply:

• k = 0

• none of the above

Which student wrote an expression that is equivalent to the orginial expression?

• Only Mason

• Only Min-Jun

• Both Mason and Min-Jun

• Neither Mason or Min-Jun

Simplify the following rational expression.

Which values of y make the expression undefined?

(What are the excluded variables?)

Choose all answers that apply:

• y = -6

• y = 6

• y = -12

• y = -9

• none of the above

Simplify the following rational expression.

Which values of n make the expression undefined?

(What are the excluded variables?)

Choose all answers that apply:

• n = -8

• n = -12

• n = 8

• n = 12

• none of the above

Simplify the following rational expression.

Which values of z make the expression undefined?

(What are the excluded variables?)

Choose all answers that apply:

• z = -17

• z = 17

• z = -19

• z = 4

• none of the above

Simplify the following rational expression.

Which values of n make the expression undefined?

(What are the excluded variables?)

Choose all answers that apply:

• n = -4

• n = 0

• n = 4

• n = -5

• none of the above