# Quadratic function in vertex form: $y = a(x-p)^2 + q$

### Quadratic function in vertex form: $y = a(x-p)^2 + q$

Besides the general form, the vertex form is also another way to express a quadratic function. In this lesson, we will talk about how to find the x-intercepts, y-intercepts, vertex of quadratic functions in vertex form.

#### Lessons

• 1.
$y = 2{\left( {x - 3} \right)^2} - 8$ is a quadratic function in vertex form.
a)
Determine:
• y-intercept
• x-intercepts
• vertex

b)
Sketch the graph.