Question

if f(x)=3x+4, g (x)= 2x-3 how will you find it . Plz help

Answer 1

find what?

Answer 2

find (f+g)(x) also find its domain

Answer 3

(f+g)(x) is just f(x) + g(x)

so it will be (3x + 4) + (2x - 3)

if you simplify this...

3x + 4 + 2x - 3

combine like terms

5x + 1

does that help?

Answer 4

ohhh got it.

Answer 5

how will u find its domain?

Answer 6

do you see an x in the denominator?

Answer 7

yes x is left

Answer 8

in 5x + 1... is there an x on the DENOMINATOR?

Answer 9

no but I can see (x)

Answer 10

5x+1(x)

Answer 11

how did a (x) get there?

Answer 12

(f+g)(x).. we found 5x+1

Answer 13

but (x) is there

Answer 14

Am I right?

Answer 15

oh I got t. So how will find the domain of it?