Help on this math question 15 points

Figure abcd is a parallelogram. if point c lies on the line x = 2, what is the y-value of point c?

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

Sam makes his sales calls according to a pattern. he travels either north or south depending on the calendar. some of his past trips were as follows: on february 17, april 24, june 10, september 19, and november 3 he drove north. on february 28, may 25, august 22, november 20, and december 18, he drove south. describe sams' pattern. in which direction will sam drive on oct4 and oct 24?