Answer:
slope = -
![(2)/(5)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/t0uv673spbc3c31ajeld1inwaddg10eja3.png)
Explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = -
x +
← is in slope- intercept form
with slope m = -
![(2)/(5)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/t0uv673spbc3c31ajeld1inwaddg10eja3.png)
Parallel lines have equal slopes, thus
m = -
← is slope of parallel line