179,339 views
35 votes
35 votes
If f(x) = 3* + 10 and g(x) = 2x - 4, find (f - g)(x).A. (f- g)(x) = x + 14B. (f- g)(x) = 3x + 2x + 6C. (f-9)(x) = -3x + 2x - 14D. (f-g)(x) = 3x - 2x + 14

User Lmmendes
by
3.3k points

1 Answer

14 votes
14 votes

We have two functions:


f(x)\text{ = 3x + 10}

And


g(x)\text{ = 2x - 4}

The subtraction is:


f(x)\text{ - g(x) = 3x + 10 - (2x - 4)}

Subtracting the common terms:


f(x)\text{ - g(x) = (3x - 2x) + (10-4) = x - 6}

The answer is:


f(x)\text{ - g(x) = x - 6}

User Nomadkbro
by
2.9k points