1 2.6.3 Test (CST): Functions and Relations Question 22 of 25
Which of the following statements are true regarding functions?
Check all that apply
A. The vertical line test may be used to determine whether a relation
is a function
B. A function is a relation in which multiple values of the input
variable are paired with at least one of the output variable.
C. A sequence is a function whose domain is the set of rational
numbers.
D. The horizontal line test may be used to determine whether a
function is one-to-one.
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