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Greetings [serch wolf](https://www.todoexpertos.com/usuarios/serchwolf) When graphing functions, you must remember that f(x)=x Implies that can I assign values to the independent variable (x) to obtain the values of the dependent variable (y) In the previous case f(x)=y=x so when x=-1, y=-1. This builds a table of data (analytically), that we can graph. !(//blob.todoexpertos.com/uploads/md/f6b941c6f7643ef43c1d762cd646c350.png) The second step would be to make the sum !(//blob.todoexpertos.com/uploads/md/9ddc30df086ce4ba5cc16256a09414ba.png) It is observed that the straight line is "move-in" three units made "up" on the y-axis The next step would be to determine the module, which implies that the negative values of the straight line would be positive !(//blob.todoexpertos.com/uploads/md/fdf35e35f898cd7c183b87430ba35f2c.png) Finally, do the subtraction, !(//blob.todoexpertos.com/uploads/md/367bf33f7558bbcac13072128897ecf6.png) And notice that the graph is "moved" four units "down" jan l axis of the Y. Successes and remember to appreciate everyone, so thank you to those who take the time to help. !(//blob.todoexpertos.com/uploads/md/63b41a3b7b716df4575d2c6d6090a800.png)