Mathematics for IGCSE & O level - Functions (Section 1 - No. 45) | ExamPlay

Mathematics for IGCSE & O level - Functions (Section 1 - No. 45)

If f(x) = x + 1, what is the result of f(x-1)?

x

x+1

x+2

x-1

Explication

f(x-1)=(x-1)+1 = x

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