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29-01-2019
Mathematics

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the axis of symmetry for the graph if the function is f(x)=1/4x^2 + bx + 10 is x=6. what is the value of b?

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Аноним Аноним

29-01-2019

Answer:

b= -3

Step-by-step explanation:

y=x²/4+bx+10=1/4(x²+2*2b+4b²)+10-b²

=(1/4'x+2b)²+10-b²

==>-2b=6==>b=-3

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