AP CALCULUS PLZ HEL The area under a curve y = f(x) over the interval [0, 4] with n equal subdivisions can be expressed as Limit of Sigma-summation Underscript k = 1 Overscript n EndScripts StartFraction 4 Over (m Subscript k Baseline) squared EndFraction times StartFraction 4 Over n EndFraction as n approaches infinity, where mk is the midpoint of the kth subdivision. If the definite integral integral from 0 to 4 of f (x) d x represents this limit, then f(x) =
4 Over x
4 Over x squared
16 Over x
16 Over x squared