Unit 6 Trashketball Review

What is the equation of the line? y = 3x – 1

This graph shows a proportional relationship of the number of people who have health insurance each year. Which of these statements is true about the graph? For each year, 1 million more people have health insurance. For each year, 2 million more people have insurance each year. In 1992, 220 million people had health insurance. In 1989, nobody had health insurance.

The graph shows a proportional relationship between the number of rides and total cost for rides at an amusement park. What is the equation that represents this data? y = 5x

The table shows the cost to rent a jet ski for various hours The table shows the cost to rent a jet ski for various hours. Write an equation to represent y, the total cost of a rental for x hours. Hours, x Total cost, y 100 1 150 2 200 3 250 y = 50x+100

The average speed for a biker on the Silver Comet Trail is 12 miles per hour. Write an equation to model the distance traveled, where y is the total miles and x is the number of hours. y = 12x

According to the graph, what is the average daily temperature doing from day 1 to 3? Increasing Decreasing Remaining constant Unable to determine from the given data

The graph shows how much Javier had in his account each week The graph shows how much Javier had in his account each week. According to the graph, how much did he start with in his account, and how much is he saving per week? $0 $10 Starting amount: Savings each week:

Brian is practicing for a race. His speed is shown in the graph Brian is practicing for a race. His speed is shown in the graph. What is happening to his speed from a time of 20 seconds to 70 seconds? Increasing Decreasing Remaining constant Unable to determine from the given data

Each day several leaves fall from a tree Each day several leaves fall from a tree. One day a gust of wind blows off many leaves. Eventually, there are no more leaves on the tree. Choose the graph that best represents the situation.

Look at the graph. Based on the graph, how much money would you expect to pay for a distance of 200 miles? $120

What type of association is shown in the table What type of association is shown in the table? (Think: as x is increasing… what is happening to y?) Negative

Number of video games played per day Number of video game wins per day What type of association is shown in the table? (Think: as x is increasing… what is happening to y?) Number of video games played per day Number of video game wins per day 10 6 12 7 13 11 17 20 22 16 26 18 Positive

Based on the graph, what value of y would be appropriate for an x value of 0? 73

The scatter plot shows the relationship between the outside temperature and total sales of ice cream. Determine which statement is false based on the data. There is a positive association between the temperature and sales. The hotter it is, the more sales are made. There is a linear association between the temperature and sales. The hotter it is, the less sales are made.

Which shows the line of best fit? A. B. C. D.

If the scatter plot has a positive association, which statement is true about the line of best fit written in slope-intercept form (y = mx + b)?   b > 0 b < 0 m > 0 m < 0 C

How much they charge each hour A cleaning services charges are based off of the equation y = 30x + 10 where x = hours and y = total cost. What does 30 represent in the equation? How much they charge each hour

A different cleaning service charges $25 per hour, plus a $20 service fee. How much would a 4 hour cleaning cost? $120

The equation y = 5x + 100 represents the pollen count in Georgia in the spring, where x is the number of days since spring started and y represents the number of grains of pollen in a cubic meter of air. In the equation, what does the y-intercept represent? How many grains of pollen there were in the air on the first day of spring.

The table shows the results of the number of 7th and 8th grade students that ate lunch at a local school. According to the information in the table, what is the total number of students that ate lunch that day?   Buy Lunch Do Not Buy Lunch Total Seventh Graders 45 75 Eighth Graders 51 25 151

Using the same data, what percent of people who did not buy lunch were 7th graders?   Buy Lunch Do Not Buy Lunch Total Seventh Graders 30 45 75 Eighth Graders 51 25 76 81 70 151 64%

76 How many of the people surveyed were 8th graders? Buy Lunch   Buy Lunch Do Not Buy Lunch Total Seventh Graders 30 45 75 Eighth Graders 51 25 76 81 70 151 76

40% What percent of 8th graders bought their lunch? Buy Lunch   Buy Lunch Do Not Buy Lunch Total Seventh Graders 30 45 75 Eighth Graders 51 25 76 81 70 151 40%