Higher Plus
8th April 1976
- 1Quadratic Inequalities3 marks
Solve x^2 - 8x + 7 < 0.
- 2Velocity Time Graphs2 marks
On a velocity-time graph a car speeds up in a straight line from 5 m/s to 13 m/s over 4 seconds. Work out the acceleration.
- 3Vectors 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?
- 4Probability Equation Questions3 marks
The probability of winning a game is 3/4. A player expects 48 wins. How many games did they play?
- 5Histograms3 marks
A histogram has two bars: one 10 units wide with frequency density 1.5, one 5 units wide with density 1.4. How many values in total?
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