In this lesson, Dennis will show us how to look for the y-intercept, x-intercept and vertex of a parabola from its general form and then sketch the parabola.

Examples

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**Graphing Quadratic Functions in General Form**

$y = 2{x^2} - 12x + 10$ is a quadratic function in general form.- Determine:

• y-intercept

• x-intercepts

• vertex

- Sketch the graph.

- Determine:
**Graphing Quadratic Functions in Vertex Form**

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

• y-intercept

• x-intercepts

• vertex

- Sketch the graph.

- Determine: