OCR MEI C2 — Question 11 4 marks

Exam BoardOCR MEI
ModuleC2 (Core Mathematics 2)
Marks4
PaperDownload PDF ↗
Mark schemeDownload PDF ↗
TopicStandard Integrals and Reverse Chain Rule
TypeFind curve equation from derivative (straightforward integration + point)
DifficultyModerate -0.8 This is a straightforward integration question requiring only basic polynomial integration and using a boundary condition to find the constant. It involves routine application of standard techniques with no problem-solving insight needed, making it easier than average but not trivial since it requires correct execution of integration and substitution.
Spec1.08a Fundamental theorem of calculus: integration as reverse of differentiation1.08b Integrate x^n: where n != -1 and sums

11 The gradient of a curve is given by \(\frac { \mathrm { d } y } { \mathrm {~d} x } = 3 - x ^ { 2 }\). The curve passes through the point \(( 6,1 )\). Find the equation of the curve.

Question 11:
AnswerMarks Guidance
\([y =]\ 3x - x^3/3\)B1
\(+ c\)B1 dep't on integration attempt
subst of \((6, 1)\) in their eqn with \(c\)M1 dep't on B0B1
\(y = 3x - x^3/3 + 55\) c.a.oA1 allow \(c = 55\) isw
## Question 11:

$[y =]\ 3x - x^3/3$ | B1 |
$+ c$ | B1 | dep't on integration attempt
subst of $(6, 1)$ in their eqn with $c$ | M1 | dep't on B0B1
$y = 3x - x^3/3 + 55$ c.a.o | A1 | allow $c = 55$ isw | 4

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11 The gradient of a curve is given by $\frac { \mathrm { d } y } { \mathrm {~d} x } = 3 - x ^ { 2 }$. The curve passes through the point $( 6,1 )$. Find the equation of the curve.

\hfill \mbox{\textit{OCR MEI C2  Q11 [4]}}