For f(x)=4x and g(x) = 3x is (f o g) (x) = 12 x
How to determine the pair of function?
The function is given as:
(f o g)(x) = 12x
Expand
(f o g)(x) = 4 * 3x
Rewrite as:
f(g(x)) = 4 * 3x
The above means that:
f(g(x)) = 4 * g(x)
So, we have:
g(x) = 3x
Replace g(x) with x in f(g(x)) = 4 * g(x)
f(x) = 4 * x
Evaluate
f(x)= 4x
Hence, for f(x)=4x and g(x) = 3x is (f o g) (x) = 12 x
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