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Indicate whether the vertex is an absolute maximum or minimum?
Indicate whether the vertex is an absolute maximum or minimum, and give the corresponding value of the function at that point.
My function is 2x^2+8x+6 and I know the vertex is (-2,-2) so how do I know it is a maximum or minimum?
2 Answers
- 7 years agoFavorite Answer
Since the coefficient to x is positive, the parabola opens up. This is true for all quadratic equations. Think about it like if the equation is positive, you are happy and the function smiles. If it is negative, you are sad and the function frowns (I know it is a bit silly, but it can help).
