Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
14th September 2022
- 1Cumulative Frequency2 marks
Four classes in order have frequencies 4, 7, 6, 3. Write down the cumulative frequency at the end of the third class.
- 2Surds2 marks
Write sqrt(72) in the form a sqrt(b), where b is as small as possible.
- 3Parallel and Perpendicular Lines3 marks
A line has equation y = 4x + 3. Work out the gradient of any line perpendicular to it.
- 4Speed and Density2 marks
A block has volume 150 cm^3 and density 8 g/cm^3. Work out its mass.
- 5Enlarging with Negative Scale Factors3 marks
The point (6, 4) is enlarged by scale factor -3 about the centre (-4, 4). Write down the coordinates of the image.
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