Answer
$\text{neither }$
Work Step by Step
Step 1. Find the slopes of each line: for $y=-2x+5$, we have $m_1=-2$; for $y=-\frac{1}{2}x+2$, we have $m_2=-\frac{1}{2}$;
Step 2. Since $m_1\ne m_2$ and $m_1\cdot m_2\ne-1$, the two lines are neither parallel nor perpendicular.
