If f(x) = 2x + 3 and g (x) = (x – 3)/2, then what is the value of fofog(x)?
Explanation:
Given, f(x) = 2x + 3
∴ fog(x) = 2g(x) + 3 = 2((x - 3)/2) + 3 = x – 3 + 3 = x.
∴ fofog(x) = 2fog(x) + 3 = 2(x) + 3 = 2x + 3.
Hence, option (a).
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