Answer
Graph:
.
Work Step by Step
Comparing to $y=mx+b,$
the y-intercept is $0$,
the slope is $m=\displaystyle \frac{-4}{3}\quad=\frac{\text{change in y}}{\text{change in x}}$.
To obtain a second point, starting with $(0,0)$,
change x by $3$, y by $-4\quad\rightarrow\quad(3,-4)$.
Draw a line through the two points.