Hello, Nichelle14 !
Didn't I solve this at another site?
Let
a. Find a continuous function,
, satifying
b. Give the values of
on
for which
is not differentiable.
c. Compute
On the interval , the graph is a straight line.
On the interval , we have a portion of the sine curve.
On the interval , the graph is a horizontal line.
The graph looks like this: Code:

1+ *
 * : * o * * * *
 * : * :
 * : * :
 *    +    *    +    +
 π/2 π* 3π/2 2π
 * :
 * :
1+ *
You should be able to answer the questions now . . .
.