Daily Practice - Higher
Grades 6-7 - Higher-tier method and manipulation.
- 1Box Plots2 marks
A box plot has minimum 3, lower quartile 8, median 18, upper quartile 21 and maximum 27. Work out the interquartile range.
- 2Surds2 marks
Write sqrt(18) in the form a sqrt(b), where b is as small as possible.
- 3Inequalities on Graphs2 marks
A region is defined by y <= -3x + 4. Should the boundary line be solid or dashed, and why?
- 4Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 6, y = 108. Work out y when x = 2.
- 5Spheres and Cones3 marks
A cone has base radius 10 cm and vertical height 6 cm. Work out its volume, leaving your answer in terms of pi.
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