Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
22nd January 2023
- 1Vectors Proof Questions3 marks
In a vector proof you find that vector PQ = 4a + b and vector RS = 8a + 2b. What does this show about PQ and RS?
- 2Probability Equation Questions3 marks
The probability of winning a game is 5/8. A player expects 65 wins. How many games did they play?
- 3Histograms2 marks
On a histogram, a 5-wide bar and a 10-wide bar have the same frequency density of 3. How many more values are in the wider class?
- 4Bounds3 marks
x = 59 and y = 42, each correct to the nearest whole number. Work out the upper bound of x - y.
- 5Trigonometric and Exponential Graphs2 marks
The curve y = sin x° is drawn for 0 <= x <= 360. Write down the value of y when x = 180.
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