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Step-by-step explanation:
5. Domain: x belongs to all real numbers from negative infinity to positive infinity. The range is y [tex]\geq[/tex] 86
6. domain: x belongs to all real numbers from negative infinity to positive infinity. The range: y belongs to all real numbers from negative infinity to positive infinity.
7. Domain: x belongs to all real numbers from negative infinity to positive infinity. The range is y [tex]\leq[/tex] 40