Question 387517
Slope m = {{{(7--9)/(-11--9) = 16/-2 = -8}}}.  Equation of the line , using the point-slope form, is 
y - 7 = -8(x - -11), or y  - 7 = -8(x+11), or y = -8x-88 + 7, or y = -8x - 81.