2021 Keystone Algebra I Module 2 Sampler

The table shows a pattern in the cost of online data storage for different numbers of terabytes of data stored.

The pattern continues. Which equation describes the pattern in the cost of online data storage?

• c = 3t + 225

• c = 5t + 225

• c = 50t + 90

• c = 75t + 15

Which graph represents a function?

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The set of ordered pairs below is a relation.

{(1, 5), (0, 2), (-1, -1), (-2, -4)}

What is the range of the relation?

• {-4, -1, 2, 5}

• {-2, -1, 0, 1}

• {all real numbers from ˉ4 through 5}

• {all real numbers from ˉ2 through 1}

A function of x is graphed on the coordinate plane.

Which equation describes the function?

A student completes math problems at an average rate of 2 problems every 5 minutes. At this rate, how many math problems does the student complete in 65 minutes?

• 13

• 26

• 30

• 52

Sonya is baking cookies. The table shows the relationship between the number of batches of cookies she bakes and the number of cups of sugar she uses.

Based on the relationship shown in the table, how many more cups of sugar does Sonya use to bake 9 batches of cookies than to bake 3 batches of cookies?

Karl starts biking at some distance from his house and rides his bike away from his house. The graph shows the relationship between the amount of time Karl rides and his distance from his house.

What distance, in miles, is Karl from his house when he starts biking?

• 0.17

• 0.25

• 2.25

• 5.33

The scatter plot shows the cost (y), in dollars, of orange trees based on their ages (x), in years.

Based on the scatter plot, which equation represents the line of best fit for the cost of the orange trees?

A teacher measures the time it takes each student in a class to complete a puzzle. The first quartile value of the teacher’s data is 4 minutes. The third quartile value is 6 minutes. Which statement must be true?

• About 25% of the students completed the puzzle in 4 minutes or less..

• About 50% of the students completed the puzzle in 6 minutes or more.

• Exactly 25% of the students completed the puzzle in exactly 4 minutes..

• Exactly 50% of the students completed the puzzle in 5 minutes or less..

The bar graph shows the average number of minutes Frank spends each week participating in four activities.

Based on the information shown in the bar graph, which value is most likely the difference between the number of minutes Frank will spend reading the next 4 weeks and the number of minutes Frank will spend gaming online the next 4 weeks?

• 56

• 168

• 224

• 295