Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
19th September 2004
- 1Bounds3 marks
x = 80 and y = 68, each correct to the nearest whole number. Work out the upper bound of x - y.
- 2Transforming Graphs y=f(x)3 marks
The point (-3, 0) lies on y = f(x). Write down its image on y = f(x - 4).
- 3Direct and Inverse Proportion Depth3 marks
y is directly proportional to sqrt(x). When x = 36, y = 18. Work out y when x = 64.
- 4The Cosine Rule3 marks
A triangle has sides 16 cm, 6 cm and 16 cm. Work out the angle opposite the 16 cm side, to 1 decimal place.
- 5Probability Equation Questions3 marks
A bag holds 6 red and n blue counters. The probability of taking a red is 1/2. Work out n.
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