SOLUTION: How would you firgure out a quadratic eqaution when given table that is
x - 10 , 20 , 30 , 40 , 50 , 60 , 70 , 80
Y - 1 , 4, 9 , 16 , 25 , 36 , 49 , 64
I tried doing
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Question 761251: How would you firgure out a quadratic eqaution when given table that is
x - 10 , 20 , 30 , 40 , 50 , 60 , 70 , 80
Y - 1 , 4, 9 , 16 , 25 , 36 , 49 , 64
I tried doing 1= a(10)^2 +b(10)+c
4 = a(20)^2 + b(20) + c
9 = a(30)^2+ b(30) + c
then solving. but i.cant seem to get the right answer
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Solve the system 
Have you got the right matrix?
John
My calculator said it, I believe it, that settles it
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