Find a quadratic function that fits the set of data points (0,−3)​, (2,1)​, (4,1). I am confused about how to go about this. Please help tonight if possible.

Answer 1

the general equation is ... y = ax^2 + bx + c

plug in the three points to generate three equations in a, b, and c

solve the system of equations for the three coefficients

1st one ... -3 = a(0)^2 + b(0) + c