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anonymous
 one year ago
Write the equation of the quadratic function with roots 9 and and 3 and a vertex at (6, 1).
anonymous
 one year ago
Write the equation of the quadratic function with roots 9 and and 3 and a vertex at (6, 1).

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0The formula I'm using is: f(x) = a[x^2  (sum of roots)x + (product of roots)]

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1roots 9 and 3 factors (x9) and (x3) a(x+9)(x+3)=0

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1using (6, 1) x = 6 and y = f(x) = 1 1 =a (6+9)(6+3) a = 1/ (3* 3) = 1/9

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438877015632:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Are you using the same formula or a different one?

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1standard/ general form for f(x) ax^2 + bx + c vertex form a(xh)^2 + k vertex (h, k) h= b/(2 a) and k = f(h)

triciaal
 one year ago
Best ResponseYou've already chosen the best response.1dw:1438877335665:dw
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