Daily Practice

Higher

11th March 1989

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

1
Box Plots2 marks
A box plot has minimum 2, lower quartile 12, median 15, upper quartile 18 and maximum 28. Work out the interquartile range.
2
Reverse Percentages3 marks
A bill is £144 including VAT at 20%. Work out the amount before VAT.
3
Parallel and Perpendicular Lines3 marks
A line has equation y = 5x + 6. Work out the gradient of any line perpendicular to it.
4
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 144. Work out y when x = 3.
5
Enlarging with Negative Scale Factors3 marks
The point (6, -4) is enlarged by scale factor -1 about the centre (0, -4). Write down the coordinates of the image.

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