LiINEAR FUNCTIONS
CONSTRUCT AND INTERPRET SCATTER PLOTS
Straight Lines Used To Model Relationships
Equation Of A Linear Model
PATTERNS OF ASSOCIATION
100
The rate of change for the ramp represented in the graph.
What is 1/3?
100
Describe the correlation of the scatterplot.
What is negative correlation?
100
A line that comes closest to data in the coordinate plane is called the line of
What is best fit?
100
The formula for rate of change.
100
A table that is an arrangement of data, usually in rows and columns.
What is a two-way table?
200
Initially a pool contains 350 gallons of water. A hose is placed in the pool and the water is turned on. The hose adds 5.2 gallons of water per minute. Model the total amount, V, of water in the pool for x, the number of minutes the hose has been on.
What is y= 5.2x + 350?
200
The graph shows the stock value for a technology company from 2002 to 2005. From this graph, The most likely value of the stock for the year 2000?
What is $10?
200
The equation that BEST represents the line of best fit for the scatterplot.
What is y=x+2?
200
Find the rate of change for the ramp represented in the graph.
What is 1/3?
200
The results of a public opinion survey on raising the minimum wage are summarized in the table. This is the percentage of those between the ages of 21-40 that are against an increase.
What is 40%?
300
Thee equation that best represents the line of best fit for the scatterplot.
What is y = -x + 6?
300
The graph shows number of tickets a person has received versus the number of accidents they have been in. If the trend continues, the amount of accidents that a person who has received 10 tickets would be in?
What is 7?
300
Matt considers whether or not the amount of time students study for a test and the grade on the test are related. He determines that the more they study the higher grade they will get. The type of slope that the line of best fit would have.
What is positive?
300
The graph shows Jessica's weight as it compares to her age. Using the line of best fit, the best approximation for Jessica's weight at age 9.
What is 75 LBS?
300
The results of a public opinion survey on raising the minimum wage are summarized in the table. This
group supports an increase more than any other group.
What is over 60?
400
The graph displays the total cost when buying gas by the gallon. The statement that best describes the relationship between cost and amount of gas purchased.
What is the more gas you buy, the more it cost?
400
Based on the scatterplot, The correlation between the time spent on homework and exam grade.
What is positive correlation?
400
The choice that is NOT a good example of a line of best fit
What is B?
400
DOUBLE BONUS!
A jetski rental company charges a $50 deposit, plus $25 per hour to rent a jetski. This can be represented by the formula T = 25h + 50, where T is the total cost, and h is the number of hours rented. If the deposit is changed to $40 and the hourly rate is changed to $35, the company make this much more on a 5 hour rental.
What is $40?
We calculate the total before and after the price change.
T(before) = 25(5) + 50 = 175
T(after) = 35(5) + 40 = 215
The difference is $40.
400
The table shows the results of a survey on the preferred flavor of ice cream. Based on this survey, this is the probability that an adult prefers chocolate ice cream.
What is 55/119?
500
You are given the graph of a linear function y = g(x) and another function with the equation ƒ(x) = 2x + 2
The function that has the greater y-intercept and by how much.
What is the graph by 3?
500
DOUBLE BONUS!
Based on a line of best fit, the exam grade that is the BEST prediction for a student who spends 4 hours on math homework.
What is 70?
500
The equation that is the BEST fit for the data in the graph.
What is y = x + 3?
500
A cayenne pepper stalk produces 4 peppers without adding fertilizer. The agriculture department establishes that the number of pods produced can be increased by adding fertilizer to the soil. The linear relationship between the number of pepper pods produced and the amount (ounces) of fertilizer added can be modeled by y = 2.5x + 4.
The number of pepper pods that can be expected after adding 1.6 ounces of fertilizer to the soil.
What is 8?
500
The table shows the results of a survey on the preferred flavor of ice cream. Based on this survey, this is the probability that teens prefer neither.
What is 45/73?