Higher November 2017 Paper 3 Q5

(a) Find the value of the reciprocal of 1.6
Give your answer as a decimal. (1)

Jess rounds a number, \(x\), to one decimal place.
The result is 9.8

(b) Write down the error interval for \(x\). (2)

Answer	Mark	Notes
\(9.75 \leqslant x \lt 9.85\)	B2	for \(9.75 \leqslant x \lt 9.85\)
\(9.75 \leqslant x \lt 9.85\)	[B1	for 9.75 or 9.85 (or \(9.84\dot{9}\))]