For rational functions and functions with square roots, the domain can be all real numbers except (1) anything that will make the
zero and (2) anything that will make an expression under a
zero.

Step-by-step explanation: 0

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