Easy -1.8 This is a straightforward recall question requiring only knowledge that 'inversely proportional' means y = k/x, then substituting one point from the graph to find k. It's simpler than typical A-level questions as it involves a single concept with minimal calculation and no problem-solving.
1 A curve for which \(y\) is inversely proportional to \(x\) is shown below.
\includegraphics[max width=\textwidth, alt={}, center]{c30a926b-d832-46f5-aa65-0066ef482c3d-4_824_1125_561_242}
Find the equation of the curve.
Can be implied later by an equation of the correct form
\(y = \frac{2}{x}\) oe
A1
# Question 1:
| Answer | Mark | Guidance |
|--------|------|----------|
| Equation of form $y = \frac{k}{x}$ | M1 | Can be implied later by an equation of the correct form |
| $y = \frac{2}{x}$ oe | A1 | |
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1 A curve for which $y$ is inversely proportional to $x$ is shown below.\\
\includegraphics[max width=\textwidth, alt={}, center]{c30a926b-d832-46f5-aa65-0066ef482c3d-4_824_1125_561_242}
Find the equation of the curve.
\hfill \mbox{\textit{OCR MEI Paper 3 2022 Q1 [2]}}