Manipulating Graphs

-Students are given a series of real life situations
-Angel gets $2 a day and he started with $3
-Fatima gets $6 a day and started with $1
-Tina spends $3 a day and started with $21

-Have students create the equations for each situation
-Have students graph the "mother function" y=x
-Have students graph (on the same axis) the equations for each of the different situations
-"How does the amount they get each day affect the graph?"
-"How does their starting amount affect the graph?"
-"Tina spent money, how do we see this in the graph?"
-Have students generalize how the slope changes the graph and the y-intercept affects the graph.