The following table shows $\left(x, \; y\right)$ values for a linear function. What is the slope of this function?
A. $2$
B. $3$
C. $6$
D. $9$
E. $1$
| $x$ | $y$ |
| 3 | 8 |
| 6 | 14 |
| 9 | 20 |
| 10 | 22 |
A. $2$
B. $3$
C. $6$
D. $9$
E. $1$
