Daily Practice · Higher Plus

Daily Practice - Higher Plus

11th October 1994

5 questions · 13 marks · Grades 8-9 · 51 question types in this band

1
Histograms3 marks
A histogram has two bars: one 5 units wide with frequency density 0.4, one 10 units wide with density 1.4. How many values in total?
2
Surds3 marks
Expand and simplify (8 + sqrt(7))(8 - sqrt(7)).
3
The Nth Term of a Quadratic Sequence2 marks
A quadratic sequence starts 13, 28, 49, 76. Work out the second difference, and the coefficient of n^2.
4
Velocity Time Graphs2 marks
On a velocity-time graph a car speeds up in a straight line from 3 m/s to 33 m/s over 20 seconds. Work out the acceleration.
5
Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 3a + b and vector RS = 9a + 3b. What does this show about PQ and RS?

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