# Points, Vectors, and Functions

### Example 1

Sketch the vector function
*f*(*t*) =t, sin *t*>
for

- all real values of
*t*

### Example 2

Going up a dimension, here's a 3-D vector function:
*f*(*t*) = <cos t, sin t>.
For 0 < t < 4π, what does the graph of this function look like?