Practice the questions of McGraw Hill Math Grade 8 Answer Key PDF Lesson 23.3 Double-Line Graphs to secure good marks & knowledge in the exams.
McGraw-Hill Math Grade 8 Answer Key Lesson 23.3 Double-Line Graphs
Exercises
INTERPRET
Question 1.
Which car is driving towards Taree? Explain.
Answer:
Car A is driving towards Taree because in the graph its shown distance travelled by it is closer to Taree and Car B is away from Taree.
Explanation:
In the graph given:
Distance towards Taree – Car A travelling.
Distance away from Taree – Car B travelling.
Question 2.
Which of the two towns has a wider variation in temperatures?
Answer:
Town B has a wider variation in temperatures than Town A because its temperature increased suddenly and decreased back than compared to the Town A temperature.
Explanation:
Temperature of Town A from January to December month:
-10 to 25 increased and decreased from 20 to -5.
Temperature of Town B from January to December month:
0 to 20 increased and decreased 20 to 0.
Question 3.
Based on the double-line graph below, what can you say happened in the year 2003? Write a sentence summarizing the data.
Answer:
Number of daily hours spent in using internet media in 2003 has increased than the hours spent on viewing television.
Explanation:
Number of daily hours spent in using internet media in 1997 = 0.2.
Number of daily hours spent in using internet media in 2000 = 1.1.
Number of daily hours spent in using internet media in 2003 = 3.5.
Number of daily hours spent in using internet media in 2006 = 4.2
Number of daily hours spent in viewing television media in 1997 = 2.2.
Number of daily hours spent in viewing television media in 2000 = 2.8.
Number of daily hours spent in viewing television media in 2003 = 3.0.
Number of daily hours spent in viewing television media in 2006 = 3.3.
Question 4.
Write a sentence explaining what has happened to urban and rural populations in the U.S. since 1900.
Answer:
Population of Urban has gradually increased from 40.8 to 82 since 1900 to 2000 than population of Rural.
Explanation:
Population in Urban from 1990 to 2000:
From 40.8 to 82 has increased gradually.
Population in Rural from 1990 to 2000:
From 59.2 to 18 has decreased gradually.