-11r + 88 = 77
Solve for r

r=1

hope this helps you

r=1

Step-by-step explanation:

77 - 88 = -11

-11/-11 = 1

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

1 and 0

step-by-step explanation: