# How do you find the axis of symmetry and vertex point of the function: #y = 3x^2 - 7x - 8#?

##### 1 Answer

Vertex:

Axis:

#### Explanation:

Since this is a parabola with axis of symmetry parallel to the

To find the minimum, you could plug the formula, but I prefer to avoid them, if you can get them by reasoning :)

So, to find the minimum, simply differentiate the formula and find the root of the derivative:

So, at this point, we already know that the axis of symmetry is the line

Finding the vertex is even simplier: since it is a point on the parabola, and you know the