G'day, aussiekid90!
Your answers are correct . . .
The graph of looks like this: Code:
*  *

* *
**
0 * * 2
 * *

In the graph of ,
. . anything below the xaxis is reflected upward. Code:
*  *
 * *
* * * *
**

The graph has two different slopes at .
. . The function is not differentiable there.
2. For the same curve, is differentiable at ?
The graph of is symmetric to the yaxis.
The graph looks like this: Code:
*  *

*  *
***
* *  * *
* *  * *

The graph has two different slopes at .
. . The function is not differentiable there.