Calculus

We are given .
To find the slope of the normal, we first compute , the derivative.
Use quotient rule: If , then .
Here, ,

At , , so slope of tangent is
The slope of the normal is the negative reciprocal of the tangent’s slope.
So, slope of normal = .
Wait — that is positive 4, but the answer marked is (C) .
Let’s double-check: , so
So actually, correct answer is (A) 4, not (C) .
Final correction: Correct Answer: (A) 4