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6 left parenthesis one half right parenthesis left parenthesis 5 right parenthesis left parenthesis 4.3 right parenthesis

Which interval for the graphed function contains the local maximum? [–3, –2] [–2, 0] [0, 2] [2, 4]

Ineed to know the answer to this algebra question.

It is given that the quadratic equation hx²-3x+k=0, where h and k are constants, has roots [tex] \beta \: and \: 2 \beta [/tex]express h in terms of k