Question

3 questions will fan an medal the best answer
What is the constant of variation for the quadratic variation?


x 2 3 4 5 6
y 32 72 128 200 288





A.


8


B.


16


C.


24


D.


40


What is the constant of variation for the quadratic variation?



9y = 4x2



A.-2




B.4/9




C.2/3




D.9/4


If f(x) varies directly with x2, and f(x) = 75 when x = 5, find the value of f(4).



A.


100


B.


50


C.


48


D.


25


Write a quadratic variation equation

Answer 1

Write a quadratic variation equation if g(x) varies directly with x2, and g(x) = 98 when x = 7.



A.


g(x) =1/2 x2


B.


g(x) = 2x2


C.


g(x) = 14x2


D.


g(x) = 7x2

Answer 2

agl202?

Answer 3

For #1, use the model y=a*x^2. Let x be 2, and y be 32.

Answer 4

Please bring out pencil and paper and find a.