Question

I JUST NEED AN ANSWER
Let f(x) = x - 3 and g(x) = 2x + 4. What is f(g(x)) ?
a; 2x+7

b; 2x-2

c; 2x+1

d; 3x+1

Answer 1

subtsitute g(x) into f(x)

Answer 2

@GmasterJoe: New here? Welcome. Please note that OpenStudy rules forbid both asking for direct answers and giving them out.

Let f(x) = x - 3 and g(x) = 2x + 4. What is f(g(x)) ?

a; 2x+7

b; 2x-2

c; 2x+1

d; 3x+1

f(g(x)) signifies a "composition." You are to use the function g(x)=2x+4 as the input to function f(x), in that order.

If f(x)=x-3, and x=2, then f(2)=2-3=-1.

Now, if f(x)= x-3, substitute g(x) for x on the left side and substitute (2x+4) for x on the right side.

Show your work, please, and simplify your answer.