# How do you identify the important parts of #y= -4x^2# to graph it?

##### 1 Answer

Please read the explanation.

#### Explanation:

Vertex-Form of a Quadratic Equation:

**Vertex**

is the **parent function**

We can see that

**Vertex**

**Axis of Symmetry** is at

Since

For the given function:

The value of

**Vertex** is at

**Axis of Symmetry** is at

Make a **data table** for the parent function

Make a **data table** for the given function

Draw the graphs for both of them and analyze the behavior of the quadratic functions:

The graph of the given function

is **compressed horizontally** since

Hope this is helpful;.