Evaluate the given expression at x=−4.

3x2+9x+1

answer: idk

step-by-step explanation:

i think it is 18

step-by-step explanation:

29933333.33

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