Question

Assume f (x) = -2x+8 and g (x) =3x.

what is the value of (f+g) (-1)?

Answer 1

First what is (f+g)(x)?

Answer 2

f (x) + g (x)?

Answer 3

(f+g)(-1)=f(-1)+g(-1)=plz continue :)

Answer 4

yep :D

Answer 5

Yes. That means add those two expressions.

Answer 6

\[f(x) = -2x + 8\]
Evaluate f(-1)
and
\[g(x) = 3x\]
at g(-1)
then add those two results together.

Answer 7

another way
f (x) = -2x+8 and g (x) =3x.
(f+g)(x) = -2x+8 + 3x = x+8
so
(f+g)(-1) = -1+8

Answer 8

so in the end it'd be 7? :)

Answer 9

yup

Answer 10

did you just ask if -1+8 = 7?

Answer 11

:P

Answer 12

@zzr0ck3r that's my way. :P