Answer
$ a.\quad$Intercepts: $(5,0)$ , $(0,-2)$
$b.$
Work Step by Step
$\begin{array}{ll}
\text{x-intercept} & \text{y-intercept}\\
(y=0) & (x=0)\\
& \\
0.2x-0.5(0)=1 & 0.2(0)-0.5y=1\\
0.2x=1 & -0.5y=1\\
x=5 & y=-2\\
& \\
(5,0) & (0,-2)
\end{array}$
Draw a line through the two points.