The table shows a linear relationship between the height of a fast-growing bamboo plant and the number of days since it was planted.
Days Planted. x 0, 2,4,6
Height (in.), y 15,20,25,30

1. What do the variables x and y represent in this relationship?
2. Read the description of the relationship above the table. How do you know that the relationship can be represented by a linear equation?
3. Can you tell whether the relationship has a positive or negative slope just by looking at the data in the table? Explain.
4. What rate does the slope represent in this situation?
5. Choose two points from the table and calculate the slope.
6. Suppose you graph the points given in the table. Where does the point (0, 15) lie? Use this information to find the y-intercept.
7. Write an equation in slope-intercept form that represents this

The table shows a linear relationship between the height of a fastgrowing bamboo plant and the number of days since it was planted Days Planted x 0 246 Height i class=