Given:-
[tex](-6,6)(9,1)[/tex]To find the point-slope form.
So we use the formula,
[tex](y-y_1)=m(x-x_1)[/tex]So to calculate m. we use the formula,
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]Substituting the values. we get,
[tex]m=\frac{1-6}{9+6}=-\frac{5}{15}=-\frac{1}{3}[/tex]So now we substiute it. so we get,
[tex]y-1=-\frac{1}{3}(x-9)[/tex]This is the required solution.