Unit 6 and Unit 7 Study Guide

Which relation has a domain of {4, 5} and a range of {2, 3}?

• {(4, 5), (2, 3), (4, 3)}

• 
• {(4, 2), (5, 3)}

• 

• x < -2.5

  Open circle

  Ray points left

• x > -2.5

  Open circle

  Ray points right

• x < 2.5

  Open circle

  Ray points left

• x > 2.5

  Open circle

  Ray points right

• 25y + 20 ≤ 300

• 20(y - 1) + 25 ≤ 300

• 25(y - 1) + 20 ≤ 300

• 20(y - 1) + 25 ≥ 300

The following boxplots summarize the number of points scored for each Debate team match. Team 1 had 12 matches and Team 2 had 20 matches. What is the total number of matches that Team 1 and Team 2 each scored 10 or more points?

• A. 21

• B. 19

• C. 20

• D. 18

Can Mya perform a non-biased statistical analysis for how students at Elko middle school are performing in English based on this sample data?

• A. Yes, because she goes to Elko.

• B. No, because she has data from only one student in one grade level at her school.

• C. Yes, because she has multiple data points.

Identify the graph that displays a linear equation that best fits the data.

• 
• 
• 
• 

Does this scatterplot show a positive relationship, negative relationship, or no relationship?

• Positive relationship

• Negative relationship

• No relationship

Is this a function or not a function?

• Yes - it is a function.

• No - it is NOT a function.

Which representation is NOT a function?

• { (4, 5), (2, 3), (4, 3) }

• 
• { (4, 2), (5, 3) }

• 

Which is a solution for the following inequality? -15 - 12w < 8w + 5

• -6

• -1

• 2

• -5