Daily Practice · Higher

Daily Practice - Higher

Grades 6-7 - Higher-tier method and manipulation.

21st January 2006

5 questions · 14 marks · Grades 6-7 · 61 question types in this band

1
Enlarging with Negative Scale Factors3 marks
The point (2, -3) is enlarged by scale factor -3 about the centre (0, -4). Write down the coordinates of the image.
2
Venn Diagrams3 marks
In a Venn diagram, 14 are in A only, 9 in B only, 11 in both and 9 in neither. Work out the probability a random one is in both.
3
Box Plots2 marks
A box plot has minimum 3, lower quartile 9, median 14, upper quartile 18 and maximum 22. Work out the interquartile range.
4
Reverse Percentages3 marks
A bill is £384 including VAT at 20%. Work out the amount before VAT.
5
Parallel 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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