Slope
Two way tables
Scatter Plots
Scatter Plots Cont.
Random
100
What is the equation of the line that goes through the points
(4, 6) (2, 12)?
y = -3x + 18
100
The graph shows the relationship between two variables. Which scenario is BEST represented by the graph?
a. The value of a car decreased at a constant rate, remained constant for a while, and then began to increase.
b. The number of animals in the local zoo increased at a constant rate over the first ten years after the zoo opened.
c. The average rainfall in a town was constant for the first 4 months of the year. Over the next 6 months it increased and then gradually decreased.
d. The number of customers in a diner increased at a constant rate during the morning hours, remained the same during lunch, and decreased during the afternoon hours.
D
100
What correlation would you expect on a scatter plot that is graphing time spend studying vs. time spent playing video games.
What is negative?
100
Which scatter plot has a stronger correlation.
What is the second scatter plot?
100
Sammy rents a truck from U-Haul. They charge $40 for the rental plus $0.25 for every mile driven. Write this in slope intercept form.
y = 0.25x + 40
200
Kasey opens a savings account. She uses the equation: y =$25x +500 to help her keep track of her savings, where y is the amount of money in her account and x is the number of weeks. Which statement is true?
a. Kasey invests $500 per week.
b. Kasey started her savings account with $25.
c. Kasey plans on investing $100 every 4 weeks.
d. Kasey will take $25 per week from her account.
C~Kasey plans on investing $100 every 4 weeks.
200
Look at the graph. When did Denise stop walking?
a. Between 0 and 1 seconds
b. Between 1 and 3 seconds
c. Between 3 and 6 seconds
d. Between 6 and 10 seconds
B~between 1 and 3 second
200
The graph represents the measurements of members of the 9th grade baseball team. Which statement best summarizes the relationship?
a.The more weight a student gains,the taller they get.
b.The more someone weighs,the taller they must be.
c. As players get taller, they tend to weigh more.
d.There is no relationship between height & weight.
C~As players get taller, they tend to weigh more.
200
The line of best fit for this scatter plot has this y-intercept of about 250? True or False
True
200
In a class project, Breanne determines that her plant growth can be described by the equation where y=0.25x + 2 where x = days and y = height of the plant in centimeters. In the equation, what does 0.25 represent?
The growth of the plant each day.
300
Which equation shows the rule for this graph?
y = -1/2x + 6
300
A marketing firm surveyed 200 people to determine their preference for coffee or tea. This two-way table shows the results of the survey. Of all the people in the survey, what percent were women who preferred coffee?
35%
300
What correlation would you expect on a scatter plot that is graphing distance of road trip vs. amount of money spent on snacks at gas stations.
What is positive?
300
True/False/. This is a good line of best fit?
True
Approximately 1/1
300
Fernando cleans pools for the summer for $25 an hour plus a supply fee of $15. Write an equation models the cost for having Fernando clean a pool for hours and then find out how much he will make for a 3-hour cleaning cost?
y = 25x + 15
then $90
400
What is the equation of the linear relationship shown in the table?
y = 3x + 1
400
This two-way table shows the results of a survey about gender and time spent exercising. How many people surveyed spent more than 10 hours exercising each week?
2100
400
This is also called a trend line and is used to make predictions with scatter plots.
What is the line of best fit?
400
This is the expected sales if the temperature is 20 degrees Celsius. 
What is 450?
400
What college did Mrs. Flaig's daughter get a flag football scholarship to?
Warner University in Lake Wales, Florida
HOORAY!!!!! Go Royals!!
500
This is the slope of a vertical line.
What is undefined?
500
A math teacher recorded the color of students’ eyes and hair. This two-way frequency table shows the results of the survey. What percent of the students have brown hair and brown eyes?
25%
500
When you are writing an equation for the line of best fit, how do you determine the y-intercept?
What is look at where the line cross the y-axis?
500
This is the time I should spend studying if I would like to get a 90% on the final. 
What is 8.5 hours?
500
A marketing firm surveyed 200 people to determine their preference for coffee or tea. This two-way table shows the results of the survey. Of all the people in the survey, what percent were women who preferred coffee?
35%