Daily Practice · Higher

Daily Practice - Higher

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

24th April 1999

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

1
Box Plots2 marks
A box plot has minimum 5, lower quartile 15, median 22, upper quartile 25 and maximum 32. Work out the interquartile range.
2
Reverse Percentages3 marks
A bill is £360 including VAT at 20%. Work out the amount before VAT.
3
Parallel and Perpendicular Lines3 marks
A line has equation y = 4x + 3. 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 = 5, y = 125. Work out y when x = 8.
5
Enlarging with Negative Scale Factors3 marks
The point (-5, 6) is enlarged by scale factor -2 about the centre (-4, 1). Write down the coordinates of the image.

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