Question Detail
Question
Find the gradient of the curve \( y = x^2 - 9x + 13 \) at \( x = 6 \).
Correct Answer
Option A is the correct answer.
Detailed Explanation
( dy/dx = 2x - 9 ). At ( x=6 ), slope ( m = 2(6) - 9 = 3 ).
Hint
Differentiate the function and substitute the value of \( x \).