Courtney is trying to make a set of parallel lines in a coordinate plane intersect at a perpendicular angle. Which strategy would work? A) Rotate them 270° B) Reflect them across the X-axis C) Only rotate one line D) Translate them to the right
B) Reflect them across the X-axis
Reflecting the lines across the X-axis will create a perpendicular intersection. This is because reflecting across the X-axis creates a mirror image of the lines, which will create a perpendicular angle where they intersect.