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OpenStudy (anonymous):
The curve y=ax2 + bx + c passes through the points (1,8),(0,5) and (3,20). Find the values of a,b and c and hence the equation of the curve.
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OpenStudy (anonymous):
this is straightforward, sub the (x,y) pairs in the given equation to get 3 equations in 3 unknowns, then solve
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