Mathematics for IGCSE & O level - Functions (Section 1 - No. 14) | ExamPlay

Mathematics for IGCSE & O level - Functions (Section 1 - No. 14)

Given f(x) = 3x - 5 and g(x) = x + 2, then find f(g(x))

3x+1

3x-3

3x-10

x+3

Giải thích

f(g(x))=f(x+2) = 3(x+2)-5 = 3x+6-5 = 3x+1

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