Use the trend line equation to predict the cost of gas per gallon in 2017.
Question 7
7.
Use the trend line equation to predict when gas would cost about $4.00.
(type the year)
Question 8
8.
Question 9
9.
Question 10
10.
Maria went to the restaurant and waited 90 seconds to place her order. Use the trend line equation to predict how many employees were working.
Question 11
11.
Ashton walked into the restaurant and 4 employees were working registers. Use the trend line equation to predict how long he will wait to place his order.
What does x represent in the equation?
Price of gas per gallon
years since 1970
What does y represent in the equation?
Price of gas per gallon
years since 1970
How can the trend line equation be used to predict the cost of gas per gallon in the year 1992?
substitute 92 for x in the equation
substitute 92 for y in the equation
substitute 22 for x in the equation
substitute 22 for y in the equation
Paul wants to know when gas would have cost about $1.50 per gallon. What step should he take?
substitute 1.50 for y in the equation
add 1.50 to the y-intercept of the equation
substitute 1.50 for x in the equation
add 1.50 to the slope of the equation
The scatter plot would have shown a positive association.
True
False
Which best describes the meaning of the slope in the trend line equation?
Customers waited an additional 70 seconds for every additional employee that was working.
Customers waited 70 fewer seconds for every additional employee that was working.
Customers waited an additional second for every 70 additional employees that were working.
Customers waited 1 second fewer for every 70 additional employees that were working.
