hope to answer this

Domain and Range.
1. Domain:
(−∞,∞),{x|x∈R}
Range:
(−∞,∞),{y|y∈R}
2. Domain:
(−∞,∞),{x|x∈R}
Range:
(−∞,∞),{y|y∈R}
3. Domain:
(−∞,∞),{x|x∈R}
Range:
(−∞,0),{y|y<0}
4. Domain:
(−∞,∞),{x|x∈R}
Range:
(−∞,∞),{y|y∈R}
5. Domain:
(−∞,∞),{x|x∈R}
Range:
(0,∞),{y|y>0}