Question

Let f (x)= –5x – 4 and g(x) = 6x – 7, how do you find f (x) + g(x)?

Answer 1

Answer:

x-11

Step-by-step explanation:

1. substitute f(x) and g(x) for the expressions that are in terms of x

-5x-4+(6x-7)

2. simplify

-5x-4+6x-7

x-4-7

x-11

Answer 2

Answer:

The value of f(x) + g(x) = x - 11

Step-by-step explanation:

The given values are f(x) = -5x - 4 and g(x) = 6x - 7.

The question is to find out the value of f(x) + g(x).

According to the algebra of real functions, this is the addition of two real functions. Suppose if we have an individual function 'f' and another individual function 'g', then the addition of these two functions can be written as,

    (f + g)(x) = f(x) + g(x)

Substitute the values in the equation, we get ⇒

     f(x) + g(x) = -5x - 4 + 6x - 7

     f(x) + g(x) = x - 11