Which of these is a relation?

A.

B.

C.

D. All of the aboveWhich of these is a NOT function?

A.

B.

C.

D. All of the aboveCorrectly complete the sentence: A function is relation...

A. if its graph passes the horizontal line test.

B. if its graph passes the vertical line test.

C. ...uh, always.

D. ...uh, never.Let , where is a whole number. Evaluate .

A.

B.

C.

D. is not defined.What is the domain of ?

A.

B.

C.

D.