Question

Which of the following methods can be used to determine if a relation is a function?? Select all that apply.

A. Write out the relation in an x-y table and check that each x-value corresponds to the only one y - value.

B. Write out the relation in an x-y table and check that each x-value corresponds to the only one x - value

C. Graph the relation on a coordinate plane and check that it passes the vertical line test.

D. Graph the relation on a coordinate plane and check that it passes the horizontal line test.​

Answer 1

B) Write out the relation in an x-y table and check that each x-value corresponds to the only one x - value