Question

if A =(1,2,3,4,5,6,7)and f:A -A is a mapping where f(x)=x +5 then find the range and domain of the function ​

Answer 1

A = (1,2,3,4,5,6,7)

f(x) = x + 5

f(1) = 6

f(2) = 7

f(3) = 8

f(4) = 9

f(5) = 10

f(6) = 11

f(7) = 12

Therefore, Range = {6,7,8,9,10,11,12}

Domain = {1,2,3,4,5,6,7}

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