Question

Could someone tell me the domain and range of the following functions? I just want to check if my answers are correct.

Answer 1

i honestly cant read that, if there was a clearer picture i'd be happy to help

Answer 2

oh noo! all right all right

Answer 3

you don't have to read my solutions by the way, just the printed part.

Answer 4

lets see what we can read

Answer 5

#10 make sure that
\[3x+7\neq 0\]
\[x\neq -\frac{7}{3}\]

Answer 6

those are somewhat clearer. i made the text is darker. :D

Answer 7

#7
\[[0,\infty)\]

Answer 8

#5, #6 all real numbers

Answer 9

#4 your answer is right

Answer 10

#3 all real numbers

Answer 11

#1, #2 all real numbers

Answer 12

im still having a hard time, sorry

Answer 13

#9 x cannot be 2

Answer 14

and #8
\[x\leq -1\]

Answer 15

that is all yes?

Answer 16

i'm so sorry i don't know how to edit it any better, neranonymous!

thank you satellite73. though isn't the domain of the 3rd one (negative infinity, -1)? :o and if you mind, could you check for the range too? i could post another question about this if you want more medals. :D

Answer 17

third one?

Answer 18

i read it as
\[f(x)=\sqrt{x^2+1}\] if so then all real numbers because
\[x^2+1\geq 1\] for all x, so you don't have to worry about something being negative under the radical

Answer 19

OH RIGHT!! sorry my bad!! thank you!

Answer 20

yw