exam Maths Puzzle Numerical Ability

Complete the square as an aid in graphing :

y = -x^2 + 2x + 2

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exam Other Question

What is the quadratic function that has a vertex at (-1,-3) and a y-intercept of -4? I think the answer is y=-(x+1)^2-3. Can someone please let me know if I am correct? x= (1000) * [ (A-W) / (W) ] ### y= (1000) * [ (W-N) / (N)] ### z= (1000) * [ (A-N) / (N) ] Write z in terms of x and y. Is this even possible?