Let's solve each question step by step using the line graph provided.
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Step 1: Understand the Graph
- The x-axis represents
weeks (from week 1 to week 8).
- The y-axis represents the
number of books sold, ranging from 0 to 140 in increments of 20.
- Each point on the graph shows the number of books sold in that week.
We'll read the values for each week:
| Week | Books Sold |
|------|------------|
| 1 | 60 |
| 2 | 120 |
| 3 | 120 |
| 4 | 90 |
| 5 | 90 |
| 6 | 60 |
| 7 | 90 |
| 8 | 10 |
*(Note: Week 8 is at 10, not 0 — it's slightly above the 0 mark.)*
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Now answer the questions:
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1) How many books were sold in week 2?
From the graph, week 2 corresponds to
120 books.
✔ Answer: 120 books
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2) How many books were sold in week 3 and 4?
- Week 3: 120 books
- Week 4: 90 books
Add them:
120 + 90 =
210 books
✔ Answer: 210 books
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####
3) How many books were sold in week 5, 6, and 7?
- Week 5: 90
- Week 6: 60
- Week 7: 90
Add them:
90 + 60 + 90 =
240 books
✔ Answer: 240 books
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####
4) How many more books were sold in week 7 than week 8?
- Week 7: 90 books
- Week 8: 10 books
Difference:
90 - 10 =
80 books
✔ Answer: 80 more books
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5) How many books were sold in all 8 weeks?
Add all weekly sales:
60 (W1)
+ 120 (W2)
+ 120 (W3)
+ 90 (W4)
+ 90 (W5)
+ 60 (W6)
+ 90 (W7)
+ 10 (W8)
Calculate step-by-step:
- 60 + 120 = 180
- 180 + 120 = 300
- 300 + 90 = 390
- 390 + 90 = 480
- 480 + 60 = 540
- 540 + 90 = 630
- 630 + 10 =
640
✔ Answer: 640 books
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####
6) What was the average number of books sold each week?
Average = Total books sold ÷ Number of weeks
= 640 ÷ 8 =
80 books per week
✔ Answer: 80 books
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✔ Final Answers:
1)
120
2)
210
3)
240
4)
80
5)
640
6)
80
Let me know if you'd like a visual explanation or help interpreting graphs!
Parent Tip: Review the logic above to help your child master the concept of printable line graph worksheet.
