Graph 4 is a Piecewise function meaning it is 2 or more functions merged together by limiting the Domain using {x > 2} for example. In this case Graph 4 is made up of 3 Equations: (-3x+2), (x-2)^2, and Square root of (4-x^2).
All of which have differing domains and ranges.
All of which have differing domains and ranges.