Dau Coroana ajutor! Am nevoie repede de aceste exercitii va rog frumos!

Hello i need some with trigonometric substitutions. [tex]\int\limits^a_b {x} \, dx[/tex]

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

The anwser cause i do not understand just plez