Respuesta :

HomertheGenius
This is a quadratic equation:
y = a x² + b x + c,  a > 0 ( opening upward )
The zeroes are: ( - 1 , 0 ) and ( 4, 0 ). 
y = a ( x - x 1 ) ( x - x 2 )
y = a ( x + 1 ) ( x - 4 )
y = a ( x² - 4 x + x - 4 )
y = a ( x² - 3 x - 4 )

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