Question

How do you graph and solve `abs[2-x/2]-1<=1`?

Answer 1

`0<=x<=8` or `x in[0,8]`

Explanation:

Add one to both sides to get:
`abs(2-x/2)<=1`

Now since we have `abs()` we ca take the positive or negative of the function:

`2-x/2<=2`
`-x/2<=0`
`-x<=0`
`x>=0`

or

`x/2-2<=2`
`x/2<=4`
`x<=8`

Combining these gives us:
`0<=x<=8` or `x in[0,8]`