Question

Draw the graph of the relation $y=2x$ and using the graph, find the value of $y$ when:
$x=-3$

Answer 1

$y=2x$.

$x=0\to y=2\left(0\right)=0$

$x=-1\to y=2(-1)=-2$

$x=-2\to y=2(-2)=-4$

$x=-3\to y=2(-3)=-6$.