Answer: So here we have a function F(x) = y. and you give some of the points (x,y).
this are (10, 409) , (50, 1889) , (125, 4664)
then, if we assume a linear relationship, we could find the slope using the next formula:
then for the first two points we get:
and the slope between the second and third point is:
So we have the same slope in the two segments, and it's safe to assume that our function is linear. Now we need to find the x-intercept
then F(x) = 37x + b
and F(10) = 370 + b = 409
b = 409 - 370 = 39
So our function is F(x) = 37*x + 39
then if x = 200, F(200) = 37*200 + 39 = 7439.
So the correct answer is B.