point slope form is
y - y1 = m ( x- x1)
y1 is the y coordinate of the first point
m is the slope
x1 is the x coordinate of the first point
We are given point (-1, 6)
and the slope of -3
Plug into the point slope form
y - 6 = -3 ( x - - 1)
y - 6 = -3 (x + 1)
Hope this helps :)
