Question 337597
You need more information.
Using the vertex form,
{{{y=a(x-5/2)^2-25/4)}}}
But you have no information regarding {{{a}}}.
Here are three plots with a=1,-2, and 3.2.
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.
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{{{drawing(300,300,-5,10,-15,5,grid(1),circle(5/2,-25/4,0.3),red(line(5/2,-20,5/2,20)),graph(300,300,-5,10,-15,5,(x-5/2)^2-25/4,-2(x-5/2)^2-25/4,3.2(x-5/2)^2-25/4))}}}