Ryan is tracking how much money he has each week.

Question

He started with $50.
He saves $15 per week for the first 6 weeks.
He spent $10 per week after week 6 until the money's all spent.

1) The graph of this scenario would be (ANSWER) because the rate of change changes.

2) The y-intercept of this graph would be (ANSWER) meaning (ANSWER).

3) The rate of change is (ANSWER) after the first 6 weeks because as the weeks increase the money decreases.

Answer 1

1. The graph of this scenario would be piecewise linear because the rate of change changes at week 6.

2. The y-intercept of this graph would be 50 meaning this is the initial amount of money Ryan started with before any saving or spending.

3. The rate of change is -10 after the first 6 weeks because as the weeks increase, the money decreases by $10 each week.