Daily Practice

Higher

19th December 1987

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

1
Parallel and Perpendicular Lines3 marks
A line has equation y = -2x + 9. Work out the gradient of any line perpendicular to it.
2
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 4, y = 64. Work out y when x = 7.
3
Enlarging with Negative Scale Factors3 marks
The point (-1, 1) is enlarged by scale factor -2 about the centre (4, -2). Write down the coordinates of the image.
4
Venn Diagrams3 marks
In a Venn diagram, 16 are in A only, 11 in B only, 9 in both and 4 in neither. Work out the probability a random one is in both.
5
Box Plots2 marks
A box plot has minimum 9, lower quartile 19, median 29, upper quartile 37 and maximum 39. Work out the interquartile range.

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