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jotirmycayear jotirmycayear
  • 21-11-2016
  • Mathematics
Answered

Which of the following could be an example of a function with a range (-∞,a] and a domain [b, ∞) where a < 0 and b < 0?

Aƒ(x)= √(x-a)+b
Bƒ(x)=3√(x-b)+a
Cƒ(x)=-3√(x+a)-b
Dƒ(x)=-√(x+b)-a ...?

Verified Answer :

Nirina7
Nirina7 Nirina7
  • 23-11-2016

the answers are
B. ƒ(x)=3√(x-b)+a  for [b, ∞)

proof
B. ƒ(x)=3√(x-b)+a  for [b, ∞)
the domain is x-b>=0 implies x>=b it is the same of x is element of [b, ∞)

Answer Link

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