5x^{2}-44x+120=-30+11x i am confuse

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

Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?