Identify at least one pair of the following angles:

-6 is the correct option from the above given options

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

it's undefined because anything multiplied by 0 is 0. that said, 7 days is 168 hours