SOLUTION: x:1,2,3,4,5 y:3.2 , 12.8 , 28.8 , 51.2 , 80.0 What is the relationship between x and y? a. y is directly proportional to x b. y is inversely proportional to x c. y is propor

Algebra ->  Linear-equations -> SOLUTION: x:1,2,3,4,5 y:3.2 , 12.8 , 28.8 , 51.2 , 80.0 What is the relationship between x and y? a. y is directly proportional to x b. y is inversely proportional to x c. y is propor      Log On


   

Question 1001744: x:1,2,3,4,5
y:3.2 , 12.8 , 28.8 , 51.2 , 80.0
What is the relationship between x and y?
a. y is directly proportional to x
b. y is inversely proportional to x
c. y is proportional to x^2
d. y is independent of x
Thanks.
Please explain!!!
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!



x|y
1|3.2=>3.2=3.2%2A1=>3.2=3.2%2A1%5E2
2|12.8=>12.8=3.2%2A4=>12.8=3.2%2A2%5E2
3|28.8=>28.8=3.2%2A9=>28.8=3.2%2A3%5E2
4|51.2=>51.2=3.2%2A16=>51.2=3.2%2A4%5E2
5|80=>80=3.2%2A25=>80=3.2%2A5%5E2
so, we have y=3.2x%5E2
your answer is:
c. y is proportional to x%5E2