Question

Give and example ( by writing an equation) of each of the following:

a function whose domain is [0, infinity)

a function whose domain is ( -infinity, infinity)

a function whose domain is (-infinity, 0) u ( 0, infinity)

Answer 1

help

Answer 2

@sweetburger @Gemini_Nation_ @Firez @fishes220 help someone

Answer 3

help

Answer 4

@IrishBoy123 some one help i give medals!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answer 5

ill help

Answer 6

thanks

Answer 7

one sec

Answer 8

k

Answer 9

f(x) = x + 1 for number 2

Answer 10

f(x) = x + 1 for number 2

Answer 11

1-x if x is greater than or equal to zero. third 1

Answer 12

and finally the first 1 is f(x)= x +4 if x is less than zero

Answer 13

did this help @Julianne6th

Answer 14

yes

Answer 15

is this right

Answer 16

You can't take the square root of negative numbers, so the domain of \[f(x) = \sqrt x\] is: \[[0,\infty)\]

Answer 17

What is the domain of this function: \[f(x) = 1/x\]
(Think: what number(s) are you not allowed to plug in for x?)

Answer 18

this is @cookiimonster627 question i posted it for him or her

Answer 19

just FYI: the domains of both f(x) = 1-x and f(x) = x + 4 are all real numbers: that is, the interval (-infinity,infinity).
Why? What number(s) can be plugged into 1 - x ? Any numbers!
That is, you can subtract *any* number from 1. (and so on)

Answer 20

@OneMathCat your so wrong that shows your not a math cat