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Home  >>  AIMS  >>  Class11  >>  Math  >>  Relations and Functions
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Which of the following relations are functions from A = {1, 4, 9, 16} to B = {–1, 2, –3, –4, 5, 6}? In case of a function, write down its range.\[\]( i) $f_1$ = {(1, –1), (4, 2), (9, –3), (16, –4)} (ii) $f_2$ = {(1, –4), (1, –1), (9, –3), (16, 2)} \[\] (iii) $f_3$ = {(4, 2), (1, 2), (9, 2), (16, 2)} (iv) $f_4$ = {(1, 2), (4, 5), (9, –4), (16, 5)}

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1 Answer

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(i) {–1, 2, –3, –4}
(ii) $f_2$ is not a function
(iii) {2}
(iv) {2, 5, –4}
answered Jun 29, 2014 by thanvigandhi_1
 

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