exam Maths Puzzle Numerical Ability

Please can somebody help me with this problem: Graph f(x)=-3/4x^2+2. Thank you

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exam Other Question

how do you evaluate the following expression:
log base square root 2 (2 sqaure root 2) Which of he following expressions represents the product of 3 less than twice x and 2 more than quantity 3 times x? Can i have this problem explained to refresh my memory?