Topic 4 Review-8th Math

Solve the equation
4(2x-5)=7(2x+4)

• 8
• -8
• -1.5
• 1.5

A survey explored the relationship between gender and band class. Which is a reasonable conclusion?

• There are more band members than non-band members
• There are more boys in the class than girls
• There are more boys in band than not in band
• More than half of the bands members in the class are girls

Based on the graph, if Joe earned $400, how many hours did he work?

• 20 hours
• 35 hours
• 45 hours
• 15 hours

Which of the following lines represents the line of best fit for the scatter plot?

• A
• B
• C
• D

The following scatter plot shows Pam's training as she prepares to run a 6 mile race at the end of the month.  Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles? 

• A. 50 min
• B. 80 min
• C. 45 min
• D. 60 min

Find the slope for the trend line using points (2,2) and (4,3)

• 2
• 1/2
• -2
• -1/2

The equation of the trend line
is  y= 1/2x +1. Use the equation to determine the amount of time it would take to bike 20 laps. 
*Look at the x and y axis first before starting the problem
   

• 38 minutes
• 11 minutes
• 41 minutes
• 10 minutes

Which scatter plot shows a negative relationship?

• Graph A
• Graph B
• Graph C
• Graph D

Which scatter plot shows no relationship?

• Graph A
• Graph B
• Graph C
• Graph D

Which scatter plot show a positive relationship?

• Graph A
• Graph B
• Graph C
• Graph D