complete the equation of the line through (-9 -9) and (-6 0)

Answer 1

slope of line = -9 - 0 / -9+6 = -9/-3 = 3

equation of line

y-y1 =m(x-x1)

y + 9 = 3(x +9)

y+9 =3x+27

3x-y+18=0