The function \(f(x)=-x(x-401)\) where \(0\le x\le401\), gives the spe…

|Question 11Math

Question

Prompt

The function

f (x) = - x (x - 401)

where

0 \leq x \leq 401

, gives the speed, in meters per second, of a particle x seconds after it started traveling. If the function f is graphed in the xy-plane, where

y = f (x)

which statement is the best interpretation of the point (1,400) on the graph?

The particle's speed was 400 meters per second 1 second after it started traveling.

The particle's initial speed was 400 meters per second when it started traveling.

The particle's speed was 1 meter per second 400 seconds after it started traveling

The particle's speed increased by 400 meters per second each second after it started traveling.