Here are the solutions for questions 1 and 3.
Question 1:
Given the functions f(x)=x2, g(x)=xтИТ41тАЛ, and h(x)=kx+m.
a) Explain the meaning of the statement "xюАа=4" in the function g(x).
The statement xюАа=4 means that x can be any real number except 4. If x were equal to 4, the denominator of g(x) would become zero, making the function undefined.
b) Find g(0).
Step 1: Substitute x=0 into the function