Question

PLEASE help, 1-10 I’ll mark brainliest !!

Answer 1

Answer:

10. YES

9. YES

8. NO

7. YES

6. YES

5. NO

4. NO

3. NO

2. YES

1. YES

Step-by-step explanation:

10. This is what is known as direct variation, which is an automatic "yes" because when using the Vertical Line Test, they all touch x at exactly ONE POINT.

9. Since they have two unique x-coordinates, this is an automatic "yes".

8. Obviously, if there are relations with a multitude of exact replicas of x, this is an automatic "no".

7. See explanation #9

6. This is a linear graph, therefore it is a function.

5. This is DEFINITELY NOT a function because although this is linear at 2 = x, it acts as a Vertical Line Test, and it touches EVERY x, so this is not a function.

4. We can tell that this is not a function because again, each time under every line, it touches another x.

3. When mapping, make sure two arrows do not come from an x-coordinate, which in this case does. Anytime this happens, automatically, this is not a function.

2. Using the Vertical Line Test, they all touch at exactly ONE POINT.

1. See explanation #2

I hope this helps you out alot, and as always, I am joyous to assist anyone at any time.