The axis of symmetry for the graph of the function f(x) = 1 x2 + bx + 10 is x=6. What is the value of b? -12
-3
1/2
3

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Ответ:

Aidanme25

24.05.2023

Mathematics

$\large\boxed{C)\ 7}$

Step-by-step explanation:

Use:

$a^n\cdot a^m=a^{n+m}$

$2^{x+3}-2^x=2^x\cdot2^3-2^x=8\cdot2^x-2^x=(8-1)\cdot2^x=7\cdot2^x\\\\2^{x+3}-2^x=k(2^x)\\\\7\cdot2^x=k(2^x)\Rightarrow k=7$

$8\cdot2^x-2^x=8\cdot2^x-1\cdot2^x=(8-1)(2^x)=7\cdot2^x\\\\\text{distributive property:}\ a(b-c)=ab-ac$

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The axis of symmetry for the graph of the function f(x) = 1 x2 + bx + 10 is x=6. What is the value of b? -12 -3 1/2 3