Daily Practice · Higher Plus

Daily Practice - Higher Plus

28th January 1997

5 questions · 14 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 1.5, one 20 units wide with density 3. How many values in total?
2
Surds3 marks
Expand and simplify (7 + sqrt(10))(7 - sqrt(10)).
3
Algebraic Fractions3 marks
Simplify (x^2 - 3x - 18)/(x + 3).
4
Velocity Time Graphs2 marks
On a velocity-time graph a car speeds up in a straight line from 8 m/s to 18 m/s over 20 seconds. Work out the acceleration.
5
Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = a - 6b and vector RS = 3a - 18b. What does this show about PQ and RS?

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