Pls Help Click to show whether each equation represents a linear or nonlinear function.

1.  y=x^2+1  is nonlinear

2.  y=x^2+2 is linear

3.  y=x  is  linear

4. y=5(x+2)  is linear

5.  y=x(x)  is nonlinear

hope this helps !!

Step-by-step explanation:

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3