The graph of y=3-x is quite different from the graph of y=1/3. The graph of y=1/3 is horizontal whereas the graph of y=3-x is 3-x is different.
A function is a relationship in which each values of x have each value of y.
We are given functions be y=3-x and y=1/3
Find the points of the function like as under:
For y=3-x
f(1)=2
f(2)=1
f(4)=-1
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