For what interval is the value of (f – g)(x) negative?

answer: sensy

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:

a=9

step-by-step explanation: lmk if you need a explanation