Question

What is the domain of f(x)=1/(x+1)-4

Answer 1

Would it be all numbers except 3? @Eyad

Answer 2

Thats right :)

Answer 3

Thanks so much! =)

Answer 4

you 're welcome so much ;)

Answer 5

no, 3 is a valid x value to plug in

Answer 6

1/(x+1)+4

1/(3+1)+4

1/4+4

17/4


So 1/(x+1)+4 = 17/4 when x = 3

Answer 7

@jim_thompson5910 : its (x+1)-4 , not (x+1)+4

Answer 8

oh right, my bad, but it still means that the domain of \[\Large f(x)=\frac{1}{x+1}-4\] isn't every real number but 3

Answer 9

the denominator is :[ (x+1)-4 ]
x-3=0 , x=3 .

Answer 10

since 3 is still a valid input

Answer 11

are you sure?

Answer 12

I'm thinking that the denominator is just x+1

Answer 13

@swimgirly95 : what is the denominator ?