Question

f(x)=3x+1 g(x)=4-x
find (f-g)(-1) i got as an answer -5 book is saying -7 am i right or is book wrong? also (g-f)(1) i got 1 book says -1

Answer 1

Show us your work

Answer 2

\[3(-1)+1-4-(-1) \]
-3+1-4+1
-2-3=-5

Answer 3

also 4-1-3(1)+1
3-3+1 = 1

Answer 4

I would recommend combining the expressions first before plugging in numbers

Answer 5

ok

Answer 6

So what's:
(3x+1)-(4-x)

Answer 7

4x+1-4
4(-1)-3