Which is the correct label of the parallel lines?
parallel lines a and b are shown. points a and b lie on line a while points c and d lie on line b.
the letters a and b are separated by two vertical lines.
there is a horizontal line with arrows on either end over the letters a a. there is another horizontal line with arrows on either end over the letters c b. a vertical line with a horizontal line intersecting it at the bottom separates the two pairs.
there is a horizontal line over the letter a with one arrow on the right end. there is a horizontal line over the letter b with one arrow on the right end. the letters are separated by two vertical lines.
there is a horizontal line with arrows on either end over the letters a b. there is another horizontal line with arrows on either end over the letters c d. a vertical line with a horizontal line intersecting it at the bottom separates the two pairs.

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.

p

step-by-step explanation:

answer: the proof is mentioned below.

step-by-step explanation:

since, given:   lines bc = ef

prove:   lines ac > ef

          statements                                           reason

1. bc=ef                                           1. given

2. ac= ab+bc                                 2. because b is the point between the  

                                                            line segment ac

3.   ac > bc                                       3. because if a line segment is equal to

                                                          the sum of two line segments then it is

                                                          always greater then each of these

                                                          individual line segments

4. ac > ef                                         4. by equality property.