f(x) =x+3 is given.
Define the concept function and give conditions which make relation a function
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The relation f is defined as f(x)={
x
2
,0≤x≤3
3x,3≤x≤10
It is observed that for 0≤x≤3, we have f(x)=x
2
and for 3≤x≤10, we have f(x)=3x
Also at x=3, f(x)=3
2
=9 or f(x)=3×3=9
i.e., at x=3,f(x)=9
Therefore for every x, 0≤x≤10, we have unique image under f
Thus, the relation f is a function.
Also, the relation g is defined as g(x)={
x
2
,0≤x≤2
3x,2≤x≤10
It can be observed that for x=2, we have g(x)=2
2
=4 and g(x)=3×2=6
Thus, the element 2 of the domain of the relation g has two different images i.e., 4 and 6
Step-by-step explanation:
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