**show your work please

answer is 12345678900987654321234567890987654321

step-by-step explanation:

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

answer is because 4×10=40

and 98×4= is 392

40,392