Mathematics for IGCSE & O level - Functions (Section 1 - No. 17) | ExamPlay

Mathematics for IGCSE & O level - Functions (Section 1 - No. 17)

If f(x) = x + 3, what is the result of f(x+1)?

x+3

x+4

x+1

2x+3

Explication

f(x+1)=(x+1)+3 = x+4

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