For this case we have that, by definition, the slope of a line is given by:
![m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/cclrk8k9bxv15y05i3ra8kmqckbcx942t8.png)
Where:
![(x_ {1}, y_ {1})\\(x_ {2}, y_ {2})](https://img.qammunity.org/2020/formulas/mathematics/middle-school/jkowbe6yu6jr0r28xv12f3ss97p4ty5r68.png)
They are points through which the line passes.
According to the figure we have that the line goes through the following points:
![(x_ {1}, y_ {1}) :( 2, -4)\\(x_ {2}, y_ {2}) :( 0, -3)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/18i1ntwc19tpqba4xnet6rtikt2lfa73hm.png)
Substituting in the equation we have:
![m = \frac {-3 - (- 4)} {0-2} = \frac {-3 + 4} {- 2} = \frac {1} {- 2} = - \frac {1} {2 }](https://img.qammunity.org/2020/formulas/mathematics/middle-school/e4abgv6f5scb8wtmi4el8ijoz7qaauewil.png)
Thus, the slope of the line is:
![m = - \frac {1} {2}](https://img.qammunity.org/2020/formulas/mathematics/high-school/fbzk5xtav0v0gbysra60241sz5cjyxynzx.png)
Answer:
![m = - \frac {1} {2}](https://img.qammunity.org/2020/formulas/mathematics/high-school/fbzk5xtav0v0gbysra60241sz5cjyxynzx.png)