Carly's savings over time is indeed an example of linear change because she consistently adds the same amount of money ($50) to her savings every week. This means her savings grow at a constant rate, which is the hallmark of a linear relationship.
Sequence of Carly’s Savings Over 8 Weeks:
- Week 1: $50
- Week 2: $100
- Week 3: $150
- Week 4: $200
- Week 5: $250
- Week 6: $300
- Week 7: $350
- Week 8: $400
So the sequence is: $50, $100, $150, $200, $250, $300, $350, $400
Formula for Carly's Savings Over Time:
Let \( y \) represent the total savings and \( x \) represent the number of weeks. Since Carly adds $50 each week, the formula will be: \[ y = 50x \]
Amount Saved After One Year (52 Weeks):
Using the formula: \[ y = 50x \]
Substituting \( x = 52 \): \[ y = 50 \times 52 \] \[ y = 2600 \]
So, after 52 weeks, Carly has saved $2,600.