### Graphs - One Perspective

Today we learned how to graph a line by generating a table of values from an equation. Here is a review.

You can use this tool to generate a table of values and a graph from any linear function. Follow these steps:

- Enter the expression in the box next to
**f(x) =**. i.e. if the equation is y = 2x - 1, enter**2x - 1**in the box. - In the boxes under
**Values of x**enter the x-values, say from -3 through 3. You can enter more if you like. - Click on the button marked [Evaluate] to find all the corresponding y-values (y-coordinates).
- Enter the ordered pair [(x, y)] with the smallest x-coordinate -- i.e. (-3, y) -- in the box next to
**Left End-Point:**do the same for the largest x-coordinate -- i.e. (3, y) -- in the box next to**Right End-Point:** - Click the button marked [Graph] to see the graph.
- Click the button [Erase Everything] to begin again with a new equation.

We're going to spend the next several days talking about the equations of lines. Remember the

**4 perspectives of the same object**(my block of wood) we discussed in class today -- it's going to come up a lot. ;-)

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