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 rational
numbers.
C. A function is a relation in which multiple values of the input
variable are paired with at least one of the output variable.
D. The vertical line test may be used to determine whether a relation
is a function.

Efficient homemakers ltd. makes canvas wallets and leather wallets as part of a money-making project. for the canvas wallets, they need two yards of canvas and two yards of leather. for the leather wallets, they need four yards of leather and three yards of canvas. their production unit has purchased 44 yards of leather and 40 yards of canvas. let x be the number of leather wallets and y be the number of canvas wallets. draw the graph showing the feasible region to represent the number of the leather and canvas wallets that can be produced.