Which statements are true of functions? Check all that apply.

A. All functions have a dependent variable.

B. All functions have an independent variable.

C. The range of a function includes its domain.

D. A vertical line is an example of a functional relationship.

E. A horizontal line is an example of a functional relationship.

F. Each output value of a function can correspond to only one input value.

The correct options are:

A. All functions have a dependent variable.

B. All functions have an independent variable.

E. A horizontal line is an example of a functional relationship.

Step-by-step explanation:

All functions have atleast a dependent variable.

If we write a function y=f (x) then it means that y depends on the value of x. This shows that y is dependent variable and x is independent variable.

A horizontal line is an example of a functional relationship because given a value of x, you can always tell the value of y.

The correct options are A, B and E ...