SOLUTION: how to solve: Write a quadratic function in standard form whose graph passes through the given points. "(1,-2) (-2,1) (3,6)" please show work so i know how to do it

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Question 572487: how to solve: Write a quadratic function in standard form whose graph passes through the given points. "(1,-2) (-2,1) (3,6)" please show work so i know how to do it
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Suppose the quadratic is y = ax^2 + bx + c. We can use our three given points (x,y) and plug in:







Solve the system of equations using any method.