Functions

Which of the following statements represents a function?

• Students to their current age

• Countries to its capital

• A store to its merchandise

Which of the following letters will pass the vertical line test?

• P

• B

• X

• C

Can the graph of a circle be considered a function?

Is the relation {(0,0),(1,1),(2,4),(3,9)} a function?

• Yes, it is a function

• No. it is not a function