I am from India from how to iinbox. hii

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15 units use socratic

step-by-step explanation: 15 units

b.-4 units

all you   do is count how many times you move

i hope this is what you were looking for.

see attached graph

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