Question

Which of the following statements are true regarding functions?

Check all that apply.

A. The horizontal line test may be used to determine whether a function is one-to-one.
B. A sequence is a function whose domain is the set of real numbers.
C. A function is a relation in which each value of the input variable is paired with exactly one value of the output variable.
D. The vertical line test may be used to determine whether a function is one-to-one.

Answer 1

c

Answer 2

A function is not a relation

Answer 3

so are the other ones false?

Answer 4

d is also true

Answer 5

A is false

Answer 6

A and C false
B and D true