Question

Find the constant of variation for the quadratic variation.





01_12_LQ_1.gif









A.
7







B.
14







C.
35







D.
21

Answer 1

I cannot see the picture, you have to press attach file. It did not come up as a link for me

Answer 2

Divide f(x) by x^2 (because it is a quadratic variation) and list it as the third row.
What do you get for the third row?

Answer 3

Quadratic variation means: f(x) = k * x^2 where k is a numerical constant.
When x = 2, f(x) = 28. Substitute in f(x) = k * x^2 and solve for k. Make sure the rest of the table agrees with the k you found.