SEMESTER 1 REVIEW

Match the description of the association with the correct graph.

• No Association

• 
• Strong Negative Association

• 
• Weak Positive Association

• 
• Strong Positive Association

• 
• Weak Negative Association

• 

Identify the 2 outliers

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 140 pages. 

• 12 chapters
• 19 chapters
• 14 chapters
• 21 chapters

Identify any outliers.

• Outlier at x = 18

• Outlier at x = 12

• Outlier at x = 6

• There aren't any outliers in this graph.

Identify any clusters.

• Cluster at x = 14

• Cluster at x = 18

• Cluster at x = 24

• There aren't any noteworthy clusters in this graph.

If 2x+3y = 12 and 3x-2y=5 then

• x = 2, y = 3

• x = 2, y = -3

• x = 3, y = 2

• x = 3, y = -2

The pair of equation x+2y+5=0 and -3x-6y+1=0 has

• A unique solution

• Exactly two solutions

• Infinitely many solutions

• No solution.

If x+y=14 and x-y=4 then the values of x and y are_________

• x=4 and y = 5

• x = 9 and y = 7

• x = -6 and y = 5

• x = 9 and y = 5

Solve the linear equation.

9x - 9 = 5x + 19

• x = 5

• x = -7

• x = 2

• x = 7

Solve. 
3x - 4 - 5x = x + 4 + x

• -4
• 2
• 4
• -2