4MA0 Higher June 2011 Paper 3 Q10
10 This rule can be used to work out the fare, in dirhams, for a taxi journey in Dubai.
Find a formula for the fare, \(C\) dirhams, for a taxi journey of \(d\) kilometres.
(3)
| Scheme | Marks |
|---|---|
| \(C = \dfrac{3d + 7}{2}\) oe | B3 |
| (Total 3 marks) |
Notes
B3: B2 for \(\dfrac{3d + 7}{2}\) oe
B2 for \(C = 3d + 7 \div 2\) oe
B1 for \(3d + 7 \div 2\)
B1 for \(C\) = linear expression in \(d\)