# How do you find the intercept and vertex of #y = x^2 – 4x + 9#?

##### 1 Answer

Dec 21, 2015

The minimum value of this expression (the vertex) is at the point (2,5). The graph never touches the x axis but it intercepts the y-axis at the point (0,5)

#### Explanation:

Rewrite the equation using completing the squares.

The minimum value of this expression (the vertex) is when x = 2 at the point (2,5). The graph never touches the x axis but it intercepts the y-axis at the point (0,5)