Answer:
Plot two points. One point is at -2. The other point is at 6.
Step-by-step explanation:
The rule we'll use is
if |y| = k, then y = k or y = -k
where k is some positive number.
In this case, y = 2-x and k = 4
So we go from
|2-x| = 4
to these two equations
2-x = 4 or 2-x = -4
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From here we solve each equation for x
2-x = 4
2-x+x = 4+x
2 = 4+x
4+x = 2
x+4 = 2
x+4-4 = 2-4
x = -2 which is one solution
and
2-x = -4
2-x+x = -4+x
2 = -4+x
-4+x = 2
x-4 = 2
x-4+4 = 2+4
x = 6 is the other solution
