In the notation "t(x) =...," what does "t(x)" represent?

In the notation t(x):

t = name of the function

x = domain or input value

t(x) = is a range (or output) value y for a given x.

The symbol "t(x)" is read as the value of t at x, or simply t of x.

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.