Which function and domain could represent the given
graph?
f(x) = 1 - [x]; -3 f(x) = 1 + [x]; -3 5x53
f(x) = -[x]; –3 sxs3
f(x) = [x]; -3

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?