Higher Plus
13th June 1953
- 1Bounds3 marks
A car covers 860 m (to the nearest 10 m) in 8 s (to the nearest second). Work out the lower bound of its speed, to 2 decimal places.
- 2Completing the Square3 marks
Work out the coordinates of the turning point of y = x^2 - 8x - 8.
- 3Direct and Inverse Proportion Depth3 marks
y is directly proportional to x^3. When x = 3, y = 81. Work out y when x = 4.
- 4Vectors Proof Questions3 marks
OACB is a parallelogram with vector OA = q and vector OB = a. N is the point dividing AB in the ratio 3 : 1. Write vector ON in terms of q and a.
- 5Probability Equation Questions3 marks
The probability of winning a game is 7/8. A player expects 77 wins. How many games did they play?
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