Mari is 10 miles away from her home. She is returning home, walking at a constant speed of 2 miles per hour.

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

5

step-by-step explanation: