Question

Draw the graph of the relation $y=2x$ and using the graph, find the value of $y$ when:
$x=4$

Answer 1

$y=2x$.

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

$x=1\to y=2\left(1\right)=2$

$x=2\to y=2\left(2\right)=4$

$x=3\to y=2\left(3\right)=6$

$x=4\to y=2\left(4\right)=8$.