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kimilew
29.06.2019 •
Mathematics
Find the equation for the quadratic function whose x-intercepts are -1 and 3with the leading coefficient is 2
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Ответ:
y = 2x² + 8x + 6
Step-by-step explanation:
given x = - 1 and x = - 3 are x- intercepts then
(x + 1) and (x + 3) are factors and
y = a(x + 1)(x + 3)
given a = 2, then
y = 2(x² + 4x + 3)
= 2x² + 8x + 6
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