Answer:
Graph 1 is not proportional
Graph 2 is proportional - y is 2 times x
Step-by-step explanation:
In graph 1, there is no x-y correlation
In graph 2, there is, when x=1, y=6
when x=2, y=12. Therefore, when x=3 y would equal 18.
There are 10 sides becuase the equation set up is and equal it to 144.
Solve for n and get 10
70.56
The variance is the standard deviation squared.
σ² = (8.4)² = 70.56