Write a coordinate proof of the following theorem: If a parallelogram is a rectangle, then its diagonals are congruent.

When only separate discreet points are graphed it is called?

Abcd is a square. what is the measure of angle bac

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.