Mathematics for IGCSE & O level - Functions (Section 1 - No. 3) | ExamPlay

Mathematics for IGCSE & O level - Functions (Section 1 - No. 3)

If f(x) = 2x - 3, what is the value of f(5)?

2

7

13

10

Explication

Substitute 5 for x in the function: f(5) = 2(5) - 3 = 7

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