1MA0 Higher November 2015 Paper 2 Q19

EdexcelHigherOld spec4 marksUpper & Lower Bounds

19 The value of \(p\) is 4.3
The value of \(q\) is 0.4

Both \(p\) and \(q\) are given correct to the nearest 0.1

(a) Write down the lower bound for \(p\). (1)

\(r = p + \dfrac{1}{q}\)

(b) Work out the upper bound for \(r\).
You must show all your working. (3)