The level of liquid in a processing tank, L L\,L units, varies over a long cycle given by the formula: L=12−6sin(15t)L = 12 - 6\sin(15t)L=12−6sin(15t), where t t\,t is the time in hours since the start of the week.
On the axes below, draw the graph of L L\,L against t t\,t for 0≤t≤240 \leq t \leq 240≤t≤24
Find the two values of ttt, where 0≤t≤480 \leq t \leq 480≤t≤48, when the liquid level is least.
Trigonometric and Exponential Graphs Questions
Practise OCR GCSE Maths Trigonometric and Exponential Graphs with exam-style questions for Foundation and Higher tier. 33 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.