For this case we have an equation of a line of the form:
[tex]y = mx + b[/tex]
Where:
m: It's the slope
b: It is the cutoff point with the y axis
We have the equation:
[tex]y = - \frac {1} {2} x + \frac {1} {4}[/tex]
So, we have:
[tex]m = - \frac {1} {2}\\b = \frac {1} {4}[/tex]
Answer:
The slope is[tex]- \frac {1} {2}[/tex]