Easy -1.8 This is a 1-mark multiple choice question testing only the basic recall that the normal is perpendicular to the tangent, so the gradient is the negative reciprocal. It requires a single calculation (-1/10 = -0.1) with no problem-solving or conceptual depth, making it significantly easier than average.
At a point \(P\) on a curve, the gradient of the tangent to the curve is 10
State the gradient of the normal to the curve at \(P\)
Circle your answer.
[1 mark]
\(-10\) \quad \(-0.1\) \quad \(0.1\) \quad \(10\)
At a point $P$ on a curve, the gradient of the tangent to the curve is 10
State the gradient of the normal to the curve at $P$
Circle your answer.
[1 mark]
$-10$ \quad $-0.1$ \quad $0.1$ \quad $10$
\hfill \mbox{\textit{AQA AS Paper 1 2023 Q1 [1]}}