# How do you find the axis of symmetry, graph and find the maximum or minimum value of the function # y = x^2 + 4x + 1#?

##### 1 Answer

#### Explanation:

This a quadratic equation and because

As there is no coefficient in front of

So the axis of symmetry is at

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Substitute the known value for x to determine the associated value of y.

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~