Mathematics for IGCSE & O level - Functions (Section 4 - No. 1)

What function transforms x to (x-5)/4?

f(x) = 4x+5

f(x) = 4x-5

f(x) = (x+5)/4

f(x) = (x-5)/4

解释

Using inverse of the function to identify which one it is.

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