Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
15th November 2004
- 1Enlarging with Negative Scale Factors3 marks
The point (-5, 2) is enlarged by scale factor -2 about the centre (3, 2). Write down the coordinates of the image.
- 2Venn Diagrams3 marks
In a Venn diagram, 16 are in A only, 6 in B only, 7 in both and 4 in neither. Work out the probability a random one is in both.
- 3Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 52 values. What cumulative frequency do you read across from to estimate the lower quartile?
- 4Surds2 marks
Write sqrt(32) in the form a sqrt(b), where b is as small as possible.
- 5Parallel and Perpendicular Lines3 marks
A line has equation y = -5x + 9. Work out the gradient of any line perpendicular to it.
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