Daily Practice · Higher

Daily Practice - Higher

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

11th January 2014

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

1
Box Plots2 marks
A box plot has minimum 11, lower quartile 21, median 31, upper quartile 40 and maximum 45. Work out the interquartile range.
2
Surds2 marks
Write sqrt(32) 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 + 5. 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 = 100. Work out y when x = 9.
5
Enlarging with Negative Scale Factors3 marks
The point (1, -1) is enlarged by scale factor -2 about the centre (-3, -3). Write down the coordinates of the image.

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