SOLUTION: Hello my question is regarding algebra of functions: i appreciate the help, i do not understand how to solve for this. If f(x)= x+2 and g(x)=x+3 1. (f+g)(x)=x+2+_______ 2.(

Algebra ->  Graphs -> SOLUTION: Hello my question is regarding algebra of functions: i appreciate the help, i do not understand how to solve for this. If f(x)= x+2 and g(x)=x+3 1. (f+g)(x)=x+2+_______ 2.(      Log On


   

Question 979165: Hello my question is regarding algebra of functions: i appreciate the help, i do not understand how to solve for this.
If f(x)= x+2 and g(x)=x+3
1. (f+g)(x)=x+2+_______
2.(f-g)(x)=(x+2)____(x-3)
3.(fg)(x)=(x+2)(____)
4.(f/g)(x)=(x+2)(x-3), x=_______
5.(f-g)(10)=_____
6.fg(5)=_____
Found 2 solutions by josgarithmetic, solver91311:
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
#1 just as an example;
the addition of functions f and g.
%28f%2Bg%29%28x%29=x%2B2%2Bx%2B3
highlight%282x%2B5%29

One must learn to read the function notation. #1 is an example for how this works.

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


operation simply means to apply the operation to the definitions of and .

is the definition of the function for all values in the domain of the function. is the value of the function when . is the value of the function at assuming is in the domain of the function. is the value of the function at . is the value of the function at , again presuming that is in the domain of the function.

This is really a very simple concept, which means that if you don't get it, you are over-thinking it. Go back and read the definition of the mathematical concept "function", and don't put anything more into it than what is in that definition.

John

My calculator said it, I believe it, that settles it