Answer:
domain - all real numbers
range - y is greater then or equal to 0
Step-by-step explanation:
I think it is tilted right downwards. But I am not so sure.
Answer:

Step-by-step explanation:
The number inside the square root symbol is the number you have to get when you multiply a certain number twice.
So
:
What multiplied by itself is 121?
Backwards equation:


Do not do the backwards method all the times, it does not work for all numbers.
Answer:
D
Step-by-step explanation: