exam Maths Puzzle Numerical Ability

� Explain what the value of the discriminant means to the graph of y = ax2 + bx + c Hint: Chose values of a, b and c to create a particular discriminant. Then, graph the correspon

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Question 41
Solve the following expression when x = 4, and y = -3.
2(x-2y)

Question 44
Find: - 8xy(4x2y + 7x - 6y2)
- 12x2 - x2 - 8xy2 f(x)=2xsquared-4x+3