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Mathematics 8 Online
OpenStudy (anonymous):

what is the quadratic function that is created with roots -10 and -4 and a vertex at (-7,-9)

OpenStudy (campbell_st):

well use the roots to find the factors x= -10 then x + 10 is a factor..etc so y=a(x +10)(x +4) substitute the vertex to find the value of a

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