Provide an appropriate response.Prove that the function f is not one-to-one.f(x) = 
- 2
What will be an ideal response?
Answers may vary. Possible answer:
Find two numbers a and b for which a ? b and f(a) = f(b). Two such numbers are -3 and 3 because f(-3) = f(3) = 1. Thus, f is not one-to-one.
Mathematics
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2
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