Substituting values from the domain will give the corresponding values from the range.
Practice makes perfect
We can graph the linear function using a table. First, let's select some arbitrary values from the domain, then substitute them for x in the given function. Solving for d(x) will give us the corresponding values from the range.
x
d(x)=-1/2x-3
Simplify
0
d( 0)=-1/2( 0)-3
d(0)= -3
2
d( 2)=-1/2( 2)-3
d(2)= -4
4
w( 4)=-1/2( 4)-3
w(4)= -5
Using these x and d(x) values as ( x, d(x)) coordinate pairs, we can plot the points. Connecting these points will give us the graph of the function.
