**Q:** What happens if I change the value of **p**?

**A:** **p** is the x-coordinate of your vertex. If it changes, the parabola will shift left or right.

Note that the general equation for a parabola is

(x-p) means:

- if you have a
**positive****p**value, the result will be**(x-p)** - if you have a
**negative****p**value, the result will be (x-(-p))=**(x+p)**

Let’s take a look at what happens when **p=3**, and then what happens when **p=-3**.

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