Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
3rd September 2024
- 1Histograms3 marks
A histogram has two bars: one 10 units wide with frequency density 0.4, one 10 units wide with density 0.6. How many values in total?
- 2Surds3 marks
Expand and simplify (7 + sqrt(10))(7 - sqrt(10)).
- 3Quadratic Inequalities3 marks
Solve x^2 + 6x + 5 > 0.
- 4Velocity Time Graphs2 marks
On a velocity-time graph a car speeds up in a straight line from 7 m/s to 9.5 m/s over 5 seconds. Work out the acceleration.
- 5Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 6a + 2b and vector RS = 30a + 10b. What does this show about PQ and RS?
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