Answer:
B
Step-by-step explanation:
Solution
If you call f(x) = y1
and call g(x) = y2
Then what you are asked to find is y1 - y2
So y1 - y2 = 3x - 1 - (x + 2) Remove the brackets.
y1 - y2 = 3x - 1 - x - 2 Collect like terms
y1 - y2 = 2x - 3
Answer
(f - g)x = 2x - 3 or B
