Question

If f(x)=4x+3 and g(x) = 3x evaluate f(x).g(x) for x=-1/2

Answer 1

multiply both functions: (4x + 3) 3x = ?
Then replace x with -1/2 and calculate

Answer 2

Is this a composite of the two functions f(g(x))?

Answer 3

I would actually (if it is multiplying both functions), plug in the (-1/2) for the x in each function first. Calculate your answers for each. Then multiply.

f(x) = 4x+ 3
-> f(-1/2) = 4(-1/2) + 3
-> f(-1/2) = 1

g(x) = 3x
-> g(-1/2) = 3(-1/2)
-> g(-1/2) = -3/2

g(x) x f(x) = (-3/2) x 1 -> -3/2