Question

What is the slope of a line perpendicular to the line whose equation is y = 2x + 5?
slope = -1
slope = -1/2
slope = -2

Answer 1

slope = -1/2
as you ask " line whose equation is y = 2x + 5?"

Answer 2

u see slope of line given is 2
when two lines are perpendicular product of slopes is -1
using that slope of the other line perpendicular to it is -1/2

Answer 3

did u get that @CoreyContini