## (Solved) 1. Consider the graph helotlur which represents a qusrtic function _;:IR----+JR,Mm)=c.n.+u.1z+1.23?

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1. Consider the graph helotlur which represents a qusrtic function _;Â°:IR----+JR,Mm)=c.n.+u.1z+Â£1.23?-1-.-:r.3.-r9'--lutsp:HI {a} Construct a system of ï¬ve linear equations involving on, G1, cg, c3 and a4 1which correspond to
the ï¬ve pieces of information given on the graph. It is recommended you keep the coefï¬cients
in the order stated to simplifyr the following calculations. Eh} Construct the augjlnented matrix {A |b]. (c) Use a sequence of elementaryÂ»r rues!Â»r operations {Gaussian elimination] to bring [A|b] to Iâ€˜DW
echelon form. Then use hack substitution to determine the values of en, e1, :12, :13 and :14.
Hence state the equation of the quartic function represented by this graph.

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