Question

The graph of which function has a minimum located at (4,-3)

Answer 1

Answer: B on edge23

Explanation:

f(x) = 1/2^x2–4x + 5

Answer 2

We need to obtain the first derivate

`\begin{gathered} f\mleft(x\mright)=-(1)/(2)x^2+4x-11 \\ f^(\prime)(x)=-x+4 \end{gathered}`
`\begin{gathered} f\mleft(x\mright)=-2x^2+16x-35 \\ f^(\prime)(x)=-4x+16 \end{gathered}`
`\begin{gathered} \: f\mleft(x\mright)=(1)/(2)x^2-4x+5 \\ f^(\prime)(x)=x^{}-4 \end{gathered}`
`\begin{gathered} f(x)=2x^2-16x+5 \\ f^(\prime)(x)=4x-16 \end{gathered}`