Claire is starting a bank account and decides that she will put in $100 to start with and each month she wants to put in an additional $75 from her part-time job each month.

1. Write an equation to represent this situation.

2. Claire remembers though that her piggy bank of coins has about $25 in it. So, she now
wants to put in $125 to start with and put in the $75 per month. Write a new equation
to represent this situation.

3. What is significant about these two equations from the questions above?

4. Draw a graph to show this of both
equations.