cloud help

[thorn sparrow]

I'm having trouble on b

5.b

[latent tusk]

what do you think the domain is

for b

[thorn sparrow]

Everything but 0 is defined

For d is everything except 0 and 1

Thats what I think

[latent tusk]

for b it is everything except for 1 and -1, since +-1^2 = 1 and 1-1 = 0, and anything over 0 is undefined

so it would be all numbers except 1 and negative 1

[thorn sparrow]

Forgot about negatives

Well

How come only 0, 1, and -1

Why not 2

Or 3

Or 4

Or 5

[latent tusk]

not 0

0^2 is 0

0-1 = -1

[thorn sparrow]

I've never learned domains

[latent tusk]

also every number except -1 and 1

[thorn sparrow]

My teacher skipped it in the curriculum

[latent tusk]

domain is basically all numbers you can put into a function to get a real output that is undefined

[thorn sparrow]

I think I get it now

So like d

You can't input 1 cuz u can't sqrt 0 and -1 would equal an imaginary numbers

Number*

Or no

Wait yes

[latent tusk]

wait are you talking about questions b or d

because you said b and now it feels like your talking about d

[thorn sparrow]

D

[latent tusk]

oooh

then the domain would be every number less than or equal to 1