2. In Canada, fuel consumption ratings for vehicles are expressed in L/100 km, or the number of litres of fuel used to travel 100 km. Fuel Consumption for a Vehicle Driven at Different Speeds on a Test Track Speed (km/h) 60 70 80 90 100 110 120 130 Fuel consumption (L/100 km) 5.6 5.9 6.2 6.7 7.4 8.1 8.7 9.4 a) Which is the independent variable? Justify your choice. b) What happens to the fuel consumption as the speed increases? c) Create a scatter plot and the line of best fit of the data. Find an equation of the line of best fit. d) Describe the relationship between the variables. e) Use the plotted data to estimate the fuel consumption for this car at a speed of 85 km/h.

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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2. In Canada, fuel consumption ratings for vehicles are expressed in L/100 km, or
the number of litres of fuel used to travel 100 km.
Fuel Consumption for a Vehicle Driven at Different Speeds on a Test Track
Speed (km/h)
60
70
80
90
100
110
120
130
Fuel consumption (L/100 km)
5.6
5.9
6.2
6.7
7.4
8.1
8.7
9.4
a) Which is the independent variable? Justify your choice.
b) What happens to the fuel consumption as the speed increases?
c) Create a scatter plot and the line of best fit of the data. Find an equation of the
line of best fit.
d) Describe the relationship between the variables.
e) Use the plotted data to estimate the fuel consumption for this car at a speed of
85 km/h. (A
Transcribed Image Text:2. In Canada, fuel consumption ratings for vehicles are expressed in L/100 km, or the number of litres of fuel used to travel 100 km. Fuel Consumption for a Vehicle Driven at Different Speeds on a Test Track Speed (km/h) 60 70 80 90 100 110 120 130 Fuel consumption (L/100 km) 5.6 5.9 6.2 6.7 7.4 8.1 8.7 9.4 a) Which is the independent variable? Justify your choice. b) What happens to the fuel consumption as the speed increases? c) Create a scatter plot and the line of best fit of the data. Find an equation of the line of best fit. d) Describe the relationship between the variables. e) Use the plotted data to estimate the fuel consumption for this car at a speed of 85 km/h. (A
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