( -6, -3), m=-1

Answer 1

I assume the question is to get the equation for a line with slope m=-1 going thru point (-6,-3)

y-y₁ = m(x-x₁)

y -(-3) = -1(x-(-6)) = -1(x+6) =-x-6

y+3 = -x-6

y=-x-9