Question

Draw the graph of $y=3x+5$.

Answer 1

Given different values for $x$ and get values for $y$. Tabulate them.
Let us trace these on a graph paper. Fix $x$ and $y$ axes and locate the points
$(x,y)=(0,5),(1,8),(2,11),(3,14),(-1,2),(-2,-1)$

We see that all these points lie on a straight line. Use a straight edge and join all these points by a straight line segment.

Hence, we get the graph of $y=3x+5$.