Draw the graph and linear equations in two variables : $y=3 x$
Draw the graph and linear equations in two variables : $y=3 x$
$y=3x$
If $x=0,$ then $y=3(0) \Rightarrow y=0$
$x=1,$ then $y=3(1) \Rightarrow y=3$
$x=-1,$ then $y=3(-1) \Rightarrow y=-3$
$\therefore$ We get the following table :
| $x$ | $0$ | $1$ | $-1$ |
| $y$ | $0$ | $3$ |
$-3$ |
Plot the ordered pairs $(0,\,0)$, $(1,\,3)$ and $(-1,\,-3)$ on the graph paper. Joining these poltils, we get the straight line $LM$.
Thus, the line $LM$ is the required graph of $y=3x$.
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