Question
Plot a line graph for the variables $x$ and $y$ , where $y = 2x + 1$. Using the graph, find the value of.
$i. y$, when $x = 5$ and
$ii. x$, when $y = 13$

Answer

We have the following table for $y = 2x + 1$
$x$
$0$
$1$
$2$
$3$
$4$
$y$
$1$
$3$
$5$
$7$
$9$

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