An electrician needs to run a cable from the top of a 48 foot tower to a transmitter box located 20 feet away from the base of the tower. find how longhe should make the cable

the answer is ! ?

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