Single Answer MCQ
Q-00051615
What is the definition of an identity function?
1
f(x) = x^2
2
f(x) = c
3
f(x) = x
4
f(x) = |x|
Answer and Solution
Answer
C. f(x) = x
Solution:
The correct definition of the identity function is f(x) = x for every x. Options 1, 2, and 4 define different types of functions.
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