What is the complete factorization of r2 - 6r - 9s2 + 9? a) (r - 3 + 3s)(r - 3 - 3s) b) (r + 3 + 3s)(r - 3 - 3s) c) (r - 3 + 3s)(r - 3 + 3s)

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation is:

option c