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.

D

Step-by-step explanation:

The vertical line test, can be done with a pencil, and it's very simple. You run the object in a vertical position, horizontally across the graph, and if it hits two points on the same Y-Axis, your function is actually a relation, since functions are not allowed to have two coordinates on the same line.

steve should create a type of business report called a business plan. the correct option among the options that are already given in the question is the last or the fourth option. this business report created by steve will actually influence the investors about investing their money in steve's business. this business report will have all the details about the business, the amount of investment required and the amount of expected profit.

this linear equation would have just one solution.

step-by-step explanation:

the reason why this would have one solution is that it is an expression with just one variable. since that variable is not raised to a power, it will always have just one solution.