Daily Practice · Higher Plus
Daily Practice - Higher Plus
Grades 8-9 - exam-stretch algebra, geometry and reasoning.
- 1Surds3 marks
Expand and simplify (7 + sqrt(5))(7 - sqrt(5)).
- 2Inverse and Composite Functions3 marks
f(x) = 7x + 11. Work out the inverse function f^-1(x).
- 3Direct and Inverse Proportion Depth3 marks
y is directly proportional to sqrt(x). When x = 49, y = 21. Work out y when x = 64.
- 4Vectors Proof Questions3 marks
OACB is a parallelogram with vector OA = p and vector OB = m. P is the midpoint. Write vector OP in terms of p and m.
- 5Probability Equation Questions3 marks
The probability of winning a game is 3/5. A player expects 27 wins. How many games did they play?
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