The function g(x) is equal to 2.
We have given that,
f(x)=c^2.
g(x)=1/2 x^2 take point (2,2) and input the values in the equation
for the value of x.
A function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function. Functions were originally the idealization of how a varying quantity depends on another quantity.
g(x)=1/2 (2)^2
g(x)= 1/2 *4
g(x)=2
Therefore the function g(x) is equal to 2.
Option B is correct.
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