Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
21st July 2008
- 1Enlarging with Negative Scale Factors3 marks
The point (-1, 5) is enlarged by scale factor -3 about the centre (-3, 4). Write down the coordinates of the image.
- 2Venn Diagrams3 marks
In a Venn diagram, 17 are in A only, 6 in B only, 9 in both and 9 in neither. Work out the probability a random one is in both.
- 3Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 184 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 4Standard Form2 marks
Work out (7 x 10^5) x (5 x 10^5). Give your answer in standard form.
- 5Parallel and Perpendicular Lines3 marks
A line has equation y = 4x + 2. Work out the gradient of any line perpendicular to it.
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