Which graph represents the function f(x)=|x|-4

Apool measures 100 meters by 100 meters a toddler inside the pool and trows a ball 60 centimeters from one edge of the pool.how far is the ball from the opposite edge of the pool

Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is

What is the value for this expression? 2e-5