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First of all, we need to figure out how to tell whether 2 lines are perpendicular. For any equation written in the form 'y=mx+c', the important bit of information we need to answer this question is the va...

Draw the two equations, indicating the point of intersections (whiteboard).If the lines intersect at x=1, then at that point the y values of each equation are equivalent. Therefore, x+ 4 = 2x + c.Inputtin...

MOID - Mann Whitney U test; ordinal data, independent groups, test of DifferenceSCOR - Spearmans test; test of Correlation, ordinal data, repeated measures or matched pairs designCIND - Chi squared test; ...

a) Find f ' (x) and f ''(x). f' = 2x² + 2bx + 2f'' = 4x + 2bb) You are given that f(x) has a stationary point at x = 2. Use this information to find b.2x² + 2bx + 2, x=2Stationary po...

Long answer questions (6+ marks) can normally be split into 3 marks for basic content and 3 marks for reasons. Long answer questions will also be assessed on quality of written communication - this means ...