Question

Given f(x) = 3x + 7 and g(x) = 3x, find (f - g)(x).

Answer 1

Explanation:

(f-g)(x) = f(x)- g(x)

= (3x + 7) - (3x)

= 7

Therefore (f-g)(x) = 7

Answer 2

(f - g)(x) = 7

Explanation:

Here, we should subtract the two functions:

f(x) = 3x + 7 and g(x) = 3x

(f - g)(x) = 3x + 7 - 3x

= 3x - 3x + 7

= 7

Hence, (f - g)(x) = 7