The distance between 2 towns is 120 kilo there are 8 kilo in 5 miles which measurement is closest number of miles between the 2 towns

Divide 120 km by 8km then multiply by 5 miles:

120/8 = 15

15 x 5 = 75 miles.

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