Which of the following statements are true regarding functions? Check all that apply.
O A. The horizontal line test may be used to determine whether a
function is one-to-one.
O B. The vertical line test may be used to determine whether a relation
is a function.
C. A sequence is a function whose domain is the set of rational
numbers.
O D. A function is a relation in which multiple values of the input
variable are paired with at least one of the output variable.

Nash is making a framed enlargement of a mary cassatt postage stamp to present to a retired postmaster. he enlarges the stamp using a scale of 2 inches to 1 centimeter. if the actual length of the stamp is 3 centimeters and its width is 5 centimeters, what are the dimensions of the scale picture? a. the length is 6 inches, and the width is 10 inches. b. the length is 1.5 inches, and the width is 2.5 inches. c. the length is 5 inches, and the width is 10 inches. d. the length is 5 inches, and the width is 7 inches.