Below are some more examples involving either absolute value or a two-piece-linear definition. First, here are equations of two lines, written in point-slope form. The lines go through the point (3, 4) and have slopes of 2 and -2 respectively. Ax) =2(x -3) +4 A(x) =-2(x - 3) +4 Now here are some functions made from pieces of the above lines. Each is described two ways: using absolute value and using two linear pieces. (x) = 21x-31+4 Ax) =-21x-31+4 OR OR -2(x - 3) +4 if x