Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
22nd April 2016
- 1Proof of the Circle Theorems2 marks
In a circle theorem proof, a step uses the fact that the three angles of triangle OAB are being summed. State the reason being quoted.
- 2Probability Equation Questions3 marks
A bag holds 5 counters, r of them red. Two are taken without replacement and P(both red) = 1/10. Work out r.
- 3Histograms3 marks
A histogram has two bars: one 5 units wide with frequency density 1.2, one 25 units wide with density 1.4. How many values in total?
- 4Surds3 marks
Rationalise the denominator of 8/sqrt(2), giving your answer in its simplest form.
- 5Transforming Graphs y=f(x)3 marks
The point (-4, 4) lies on y = f(x). Write down its image on y = f(x) - 3.
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