Daily Practice · Higher Plus

Daily Practice - Higher Plus

Grades 8-9 - exam-stretch algebra, geometry and reasoning.

18th November 2021

5 questions · 15 marks · Grades 8-9 · 51 question types in this band

1
Histograms3 marks
A histogram has two bars: one 20 units wide with frequency density 0.4, one 20 units wide with density 3. How many values in total?
2
Surds3 marks
Simplify sqrt(80) + sqrt(180), giving your answer in the form a sqrt(b).
3
Quadratic Inequalities3 marks
Solve x^2 - 2x < 0.
4
Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^2. When x = 2, y = 36. Work out the positive value of x when y = 729.
5
Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = a + b and vector RS = 5a + 5b. What does this show about PQ and RS?

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