Timmy writes the equation  f(x)  =  x  –  1. he then doubles both of the terms on the right side to create the equation  g(x)  =  x  –  2. how does the graph of  g(x)  compare to the graph of f(x)

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?