# The Basics

### Below is important terminology for vertex form of parabolas!

## Optimal Value (Max. / Min. Value)

**The vertex's height of the parabola. This is your**

__y coordinate__of your vertex!The Maximum value is the highest point of the parabola while the minimum value is the lowest of the parabola. If the parabola has a max value, it will open downwards. If it has a min value, it will open upwards.

(x,**y**)

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## Y- intercept

**Where the parabola crosses the y - axis**

*How do I Label it?*

**Set your x at 0 and plug in the y value **

(0,**__**)

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