Analyzing Account Balances and Trends

The video tutorial covers an activity involving five savings account graphs from a lesson on using linear relations to solve problems. Each graph is analyzed to determine its story, equation, slope, and y-intercept. Predictions are made for each account's balance after 20 weeks. The tutorial emphasizes understanding linear equations and their real-world applications.

What is the main task students need to perform with the five graphs in the activity?

• Identify the highest savings account balance.

• Determine the interest rate for each account.

• Calculate the total savings after 10 weeks.

• Create a story, write equations, and predict future values.

For Line C, what does the negative slope indicate?

• The account balance is increasing.

• The account balance remains constant.

• The account balance is decreasing.

• The account balance is fluctuating.

What is the initial amount in the account for Line A?

• $100

• $50

• $150

• $20

How does the account balance change for Line D?

• It remains constant at $30.

• It decreases by $5 each week.

• It fluctuates unpredictably.

• It increases by $10 each week.

What is the starting balance for Line B?

• -$80

• $100

• $0

• $50

For Line E, what is the rate at which money is spent each week?

• $5

• $20

• $15

• $10

After 20 weeks, what is the balance for Line A?

• $400

• $350

• $500

• $450

What is the balance for Line B after 20 weeks?

• $320

• $500

• $400

• $450

What is the balance for Line C after 20 weeks?

• $10

• $40

• $20

• $30

What is the debt for Line E after 20 weeks?

• $100

• $160

• $120

• $140