SOLUTION: Find the vertex, the line of symmetry, and the maximum or minimum value of f(x). F(x)=1/5(x+1)^2+7 Any help is greatly appreciated. These always confuse me. Thank you in ad

Question 352586: Find the vertex, the line of symmetry, and the maximum or minimum value of f(x).
F(x)=1/5(x+1)^2+7
Any help is greatly appreciated. These always confuse me.
Thank you in advance!
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Confused how?
The equation is already in vertex form, , where (,) is the vertex.
Compare to the given equation to find the vertex, (,).
The line of symmetry lies on the vertex, so
Whether the parabola opens upwards or downwards is determined by the sign of .
If , then the vertex value is a minimum,
If , then the vertex value is a maximum,

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