Daily Practice · Higher

Daily Practice - Higher

23rd January 1995

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

1
Parallel and Perpendicular Lines3 marks
A line has equation y = -4x + 4. Work out the gradient of any line perpendicular to it.
2
Repeated Percentage Change3 marks
A price rises by 20% and then falls by 15%. Work out the overall percentage change, to 2 decimal places.
3
Enlarging with Negative Scale Factors3 marks
The point (6, 4) is enlarged by scale factor -2 about the centre (0, -4). Write down the coordinates of the image.
4
Venn Diagrams3 marks
In a Venn diagram, 12 are in A only, 16 in B only, 8 in both and 3 in neither. Work out the probability a random one is in both.
5
Cumulative Frequency2 marks
A cumulative frequency graph is drawn for 40 values. What cumulative frequency do you read across from to estimate the lower quartile?

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