If y varies with x, and y equals 10 when x equals 4, find when y equals 80

In the coordinate plan (-6,9) b (3,9) c (3,3) def is shown in the coordinate plan below

Statement: if two distinct planes intersect, then their intersection is a line. which geometry term does the statement represent? defined term postulate theorem undefined term

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20