## Find the vertex of the quadratic equation

In this tutorial students learn how to find the vertex of a quadratic equation (parabola) using various methods. Those methods include graphing with the TI 84 C, calculus, and algebra methods like completing the square.

When using the calculator I could have also used the MINIMUM function.

2ND | TRACE | OPTION 3 for MINIMUM

Move the indicator to the left of the suspected vertex using the ARROW key and press ENTER.

Move the indicator to the right of the suspected vertex using the ARROW key and press ENTER.

The calculator will then display the minimum (x,y) coordinate within that boundary.

## Virginia Standards of Learning(SOL)

**A.4**

**AII.4**

**AII.5**

**MA.1**

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