Easy -1.8 This is a straightforward single-step question requiring only basic differentiation of an exponential function and evaluation at x=0. It's routine recall with no problem-solving element, and the multiple-choice format further reduces difficulty. Significantly easier than average A-level questions.
1 Find the gradient of the curve \(y = \mathrm { e } ^ { - 3 x }\) at the point where it crosses the \(y\)-axis. Circle your answer.
\(\begin{array} { l l l } - 3 & - 1 & 1 \end{array}\)
1 Find the gradient of the curve $y = \mathrm { e } ^ { - 3 x }$ at the point where it crosses the $y$-axis. Circle your answer.\\
$\begin{array} { l l l } - 3 & - 1 & 1 \end{array}$
\hfill \mbox{\textit{AQA AS Paper 2 2019 Q1 [1]}}