SOLUTION: find a formula ( in the form f(x)=ax2+bx+c) for aquadratic function with roots 1/2 and 6, and where the point (2,-56) is on the graph of the function

Question 576132: find a formula ( in the form f(x)=ax2+bx+c) for aquadratic function with roots 1/2 and 6, and where the point (2,-56) is on the graph of the function
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
This is actually 3 points,
( 1/2,0), (6,0), and(2,-56)
I can write:
(1)
(2)
(3)
--------------------------
(1)
(1)
(2)
(3)
Subtract (1) from (3)
This is 3 equations and 3 unknowns, so
you can solve for a,b, and c to get

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