Question

Which of the following is true about the function below?
No one in my family has been able to help me with this one!

Answer 1

Thank yoou so much guys :)

Answer 2

I am pretty sure it is B

Answer 3

What is true about the domain of a square root?

Answer 4

but then again, i do not get this concept

Answer 5

Is there any way you could walk me through the steps? because i have no idea :)

Answer 6

ok well you can't take the square root of a negative number.

Answer 7

which means that -11 would not work because -11 + 10 is -1.

Same with -12 , -13 etc.

Answer 8

Alright, thank you :)

Answer 9

so A is false because -infinity doesnt work

Answer 10

So if A is false because infinity doesnt work, wouldnt B be false too?

Answer 11

D is also incorrect because the domain cannot = -10 or you would be dividing by 0.

Answer 12

true, True, so would it be C?

Answer 13

B and C are still choices we havent looked at range yet

Answer 14

Oh, my bad :)

Answer 15

lets throw -9 in for x what do we get as the range?

Answer 16

Wait, would B be right? the range in C is the same as the range in A, so it couldnt be right, right?

Answer 17

-19?

Answer 18

no...

Answer 19

you get 1

Answer 20

Ok, waittt, it would be the square root of 19? sorry i really dont know math too well..

Answer 21

plugging more numbers in for x you find that the range never goes negative...

so what is the answer?

Answer 22

C?

Answer 23

yes

Answer 24

Thank you!