Consider the line in this graph:
- Identify a point visible on this line that has integer coordinates.
- What is the slope of the line?
- Use point-slope form to write an equation for this line, making use of a point with integer coordinates.
- The visible points with integer coordinates are and
- Several slope triangles are visible where the “run” is and the “rise” is So the slope is
- Using the point-slope equation is (You could use other points, like and get a different-looking equation like which simplifies to )