Mishka is on a long road trip, and she averages 70 mph for 3 hours while she's driving on the highway. while she's driving on side roads for 1 hour, she only averages 40 mph. what is the total distance that she covers on her road trip?

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