# What is the slope of 2x+4y=1?

The slope is $- \frac{1}{2}$
Put it in the form $y = m x = c$ and $m$ is the slope:
$2 x + 4 y = 1$ => $y = - \frac{x}{2} + \frac{1}{4}$
Therefore the slope is $- \frac{1}{2}$.