For x ≤ -3, the function is constant and has the value of -2, that is, f(x) = -2
For -3 < x < 0, the function is a line with slope -1 and y-intercept equal to 4,that is, f(x) = -x + 4
For x ≥ 0, the function is a line with slope 1 and y-intercept equal to 0,that is, f(x) = x
-2 x ≤ -3
f(x)= -x + 4 -3 < x < 0
x x ≥ 0