Substituting values from the domain will give the corresponding values from the range.
Practice makes perfect
Let's graph using a table. First select some arbitrary values from the domain, then substitute them for x in the given equation. Solving for g(x) will give us the corresponding values from the range.
x
g(x)=x+3
Simplify
0
g( 0)= 0+3
g( 0)= 3
2
g( 2)= 2+3
g( 2)= 5
4
g( 4)= 4+3
g( 4)= 7
Using these x- and g(x)-values as ( x, g(x)) coordinate pairs, we can plot the points. Connecting these points will give us the graph of the function.
