Question

Graph y = x + 4. this is a khan academy question

Answer 1

Answer:

Given function:

$y=x+4$

We will plugin some random values for $x$ to evaluate $y$ and thus find out the points in the form $(x,y)$ to be plotted on graph.

$x$            $y=x+4$          $(x,y)$

$0$             $0+4=4$           $(0,4)$    

$1$              $1+4=5$            $(1,5)$  

$2$              $2+4=6$          $(2,6)$

We have got 3 points of the line $y=x+4$  to plot on the graph. After plotting the points, we will join them and extend either side to infinity to get the line.