Which of the following relations is a function?
a. {(-2, -2),(-2, -1),(-2, 0),(-2, 1),(-2, 2)}
b. {(1, 0),(-1, 0),(2, 1),(-2, 1),(3, 2),(-3, 2)}
c. {(-2, 1),(-1, 2),(0, 0),(-1, 1),(2, -2)}
d. {(-3, 3),(1, 3),(-3, 2),(1, 2),(-3, 1),(1, 1)}

Question

Which of the following relations is a function?
a. {(-2, -2),(-2, -1),(-2, 0),(-2, 1),(-2, 2)}
b. {(1, 0),(-1, 0),(2, 1),(-2, 1),(3, 2),(-3, 2)}
c. {(-2, 1),(-1, 2),(0, 0),(-1, 1),(2, -2)}
d. {(-3, 3),(1, 3),(-3, 2),(1, 2),(-3, 1),(1, 1)}

anonymous · Answer

i think it's B.

acxbox22 · Answer

B is correct since the requirement to be a function is that every x value has only one y value and only option B satisfies that