Algebra 1 | Unit 2 | Lesson 5: Equations and Their Graphs | Practice Problems

Technology required. Priya starts with $50 in her bank account. She then deposits $20 each week for 12 weeks. Write an equation that represents the relationship between the dollar amount in her bank account and the number of weeks of saving. Graph your equation using graphing technology. Mark the point on the graph that represents the amount after 3 weeks. How many weeks does it take her to have $250 in her bank account? Mark this point on the graph.

During the month of August, the mean of the daily rainfall in one city was 0.04 inches with a standard deviation of 0.15 inches. In another city, the mean of the daily rainfall was 0.01 inches with a standard deviation of 0.05 inches. Han says that both cities had a similar pattern of precipitation in the month of August. Do you agree with Han? Explain your reasoning.

In a video game, players form teams and work together to earn as many points as possible for their team. Each team can have between 2 and 4 players. Each player can score up to 20 points in each round of the game. Han and three of his friends decided to form a team and play a round. Write an expression, an equation, or an inequality for each quantity described here. If you use a variable, specify what it represents.