Daily Practice

Higher

3rd September 1983

5 questions · 13 marks · Grades 6-7 · 61 question types in this band

1
Box Plots2 marks
A box plot has minimum 14, lower quartile 23, median 31, upper quartile 41 and maximum 51. Work out the interquartile range.
2
Surds2 marks
Write sqrt(45) in the form a sqrt(b), where b is as small as possible.
3
Parallel and Perpendicular Lines3 marks
A line has equation y = 2x + 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 = 4, y = 144. Work out y when x = 9.
5
Enlarging with Negative Scale Factors3 marks
The point (3, -5) is enlarged by scale factor -2 about the centre (0, 2). Write down the coordinates of the image.

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