☑Kizspy.me
(Choose 1 answer)
☐ A
(See picture)
A. (i)
B. (iii)
C. (ii)
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D. (iv)
FUO.sh
sh the exam.
Which of the following is a function?
(i)
f: R R where f(x)=√√x
1
(ii)
f: Z→ R where f(x) = x² = 2
1
(iii) f: RR where f(x)=-
x-2
(iv) f: RR where f(x)=-
1
x+2
