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

Quadratic function in vertex form: y=a(xp)2+qy = 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(x3)28y = 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.