Daily Practice

Higher

15th November 1969

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

1
Box Plots2 marks
A box plot has minimum 12, lower quartile 15, median 24, upper quartile 30 and maximum 32. Work out the interquartile range.
2
The Product Rule for Counting3 marks
A code is 2 letters (A to Z) followed by 4 digits (0 to 9), and repeats are allowed. How many codes are possible?
3
Parallel and Perpendicular Lines3 marks
A line has equation y = 3x + 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 = 3, y = 18. Work out y when x = 4.
5
Enlarging with Negative Scale Factors3 marks
The point (6, 5) is enlarged by scale factor -3 about the centre (4, 1). Write down the coordinates of the image.

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