Question

Hello, if you know this please don't ignore it. :( If you have time please answer this correctly.

Tell if its a function. Please look above for the guide.

Don't worry, I'm marking the brainliest, if you explained it to me well and not just guessing the answer.

Thank you so much in advanced. ​

Answer 1

Step-by-step explanation:

We have to find the number of Zeros

So the Zeros can be found out by finding number of points on X axis

8. One zero

9. One zero

10. No zero

11. One zero

Answer 2

Here 8, 10 and 11 are function and 9 is not a function.

Explanation,

In a graph if there are multiple value of y for a given constant x then it is not a function.

And if for each value of x you have a single value of y then it is a function.

if figure 9 where the line is parallel to y axis the value of y cannot be determined for value of x corresponding to it.

In figure 8, 10 and 11 each value of x has a single value of y hence it is a function.