Question 1206103
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The general approach to solving this and similar problems is to form three equations

for coefficients "a", "b" and "c" of the quadratic function, using the three given points,

then solve this system of three equations.



How you will solve the system, it is just another/separate question.



You may use the solver in your calculator;

or you may use some of numerous online calculators in the Internet;

or do it manually using standard substitution or elimination methods.



Sometimes, some simplifications of this general procedure are possible 
if the problem has symmetries that facilitate finding the coefficients.


In this given problem, there are no such symmetries,
so the general approach must be used.