Question

P(4,4); y=-2x-8 what is a line perpendicular?

Answer 1

so for your m you have to flip

y=-2x-8 => y=1/2x+b
now solve for b by plugging in the point given
4=(1/2)(4)+b
4= 2+b
subtract two on each side
2=b

equation is y=(1/2x)+2