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Plot the axis of symmetry and the point where the maximum value occurs for the function below.

h(x)=-1/2x^2-2x+6

Respuesta :

Answer:

Axis of symmetry: x=-2

Maximum point: (-2,8)

Step-by-step explanation:

The given function is [tex]h(x)=-\frac{1}{2}x^2-2x+6[/tex].

We can complete the square to reveal the axis of symmetry and the vertex.

We factor to get:

[tex]h(x)=-\frac{1}{2}(x^2+4x)+6[/tex]

We add the zero pairs and obtain a perfect square:

[tex]h(x)=-\frac{1}{2}(x^2+4x+4-4)+6[/tex]

[tex]h(x)=-\frac{1}{2}(x^2+4x+4)+2+6[/tex]

[tex]h(x)=-\frac{1}{2}(x+2)^2+8[/tex]

The function is now in the form [tex]h(x)=a(x-h)^2+k[/tex], where V(h,k) =(-2,8) is the vertex.

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