Question i could not type it out so pls help me understnad

Write an equation of the line that passes through the point (2, 3) and is perpendicular to the line x = -1. a) y = 1 b) y = 3 c) y = 0 eliminate d) y = -3

Determine which postulate or theorem can be used to prove that lmn =nmo

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