Answer:
The 2nd choice is correct
Step-by-step explanation:
Answer:
not a function
Step-by-step explanation:
This is not a function
The input 2 goes to two different outputs
2 goes to the output of 4 and the output of 0
This makes it a relation and not a function
Average = Mean
To find the mean, add up the numbers and divide it by how many numbers there are.
So,
![-2.6+1.8+(-3.3)+(-2.7)+2.2=-4.6](https://tex.z-dn.net/?f=-2.6%2B1.8%2B%28-3.3%29%2B%28-2.7%29%2B2.2%3D-4.6)
There are 5 numbers in total.
![-4.6 \div 5=-0.92](https://tex.z-dn.net/?f=-4.6%20%5Cdiv%205%3D-0.92)
To do these types of division, ignore the decimal and add a 0 at the end.
So we can do:
![-460\div5=-92](https://tex.z-dn.net/?f=-460%5Cdiv5%3D-92)
And put back the decimal.
Hope this helps :)