sdolina5
28.10.2019 •
Mathematics
which function could the graph represent?
a) f(x) = x2 − 3x + 6
b) f(x) = 2x2 − 9x + 9
c) f(x) = 4x2 − 9x + 7
d) f(x) = −2x2 − 4x + 1
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Ответ:
B
Step-by-step explanation:
The curve cuts the x-axis at points x=3/2 and x=3
F(x)= ((x-3/2)(x-3)
=x2-3x-3x/2+9/2
2x2-6x-3x+9
=2x2-9x+9
Ответ: