Daily Practice · Higher

Daily Practice - Higher

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

24th October 2015

5 questions · 12 marks · Grades 6-7 · 61 question types in this band

1
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 24. Work out y when x = 6.
2
Perpendicular Lines and the equation of a tangent2 marks
A line has gradient -2. Work out the gradient of a line perpendicular to it.
3
Conditional Probability3 marks
15 students study Spanish and 4 of those also study Art. One Spanish student is picked at random. Work out the probability they study Art.
4
Box Plots2 marks
A box plot has minimum 5, lower quartile 8, median 12, upper quartile 18 and maximum 27. Work out the interquartile range.
5
Standard Form2 marks
Work out (7 x 10^4) x (3 x 10^-2). Give your answer in standard form.

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