Write an equation of the line that passes through the given point and has the given slope. Write the equation in slope-intercept form.
(-5,-6), m=-3
m=change in y/change in x.
-6-y/-5-x=-3
we want to get it into y=mx+b form.
I multiplied each side by (-5-x)
I got -6-y=15+3x
Then, add 6 to both sides.
-y=21+3x
Your equation would be y=-21-3x because you want to take away the negative sign from y