exam Maths Puzzle Numerical Ability

45-[4-2y-4(y+7)]=-4(1+3y)-[4-3(y+2)-2(2y-5)]

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A frisbee is thrown straight up in the air, and its height is measured in metres at intervals of 0.2 seconds. If the resulting data forms a quadratic sequence of the form tn=an^2+b PLEASE I AM DESPERATE . COULD SOMEONE HELP ME RESOLVE THIS?

A.(i)Find the equation of the line which passes through the point of intersection of the two lines 4x-4y+3 = 0 and 4x