f: R -> R
f(x) = x for each x ∈ R
i.e. y = x for each x ∈ R
Plotting graph
x |
0 |
1 |
–2 |
y |
0 |
1 |
–2 |
Here,
Domain = All values of x = R
Range = All values of y
= All values of x (Since x = y)
= R
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