Study the line graph to answer questions about Marco's height at different ages.

Let’s solve each question by carefully reading the line graph titled “Marco’s Height”.

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📊 Understanding the Graph:

- X-axis (horizontal): Marco’s Age — from 6 to 18 years.
- Y-axis (vertical): Height in cm — from 0 to 220 cm, with grid lines every 20 cm.
- The purple line connects data points showing Marco’s height at different ages.

We’ll find each answer by locating the age on the x-axis, moving up to the line, then reading across to the y-axis for height — or vice versa for questions asking for age based on height.

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## ✔ Question 1: What was Marco’s height when he was 12 years old?

- Find 12 on the x-axis (age).
- Move up to the purple line.
- Move left to read the height on the y-axis.
- The point is halfway between 160 cm and 180 cm → that’s 170 cm.

> Answer: 170 cm

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## ✔ Question 2: What was Marco’s height when he was 14 years old?

- Find 14 on the x-axis.
- Move up to the line.
- The point aligns exactly with 190 cm on the y-axis.

> Answer: 190 cm

*(Note: Between 160 and 180 is 170, then 180 to 200 — halfway is 190. The graph shows the point right at 190.)*

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## ✔ Question 3: What was Marco’s height when he was 18 years old?

- Find 18 on the x-axis.
- Move up to the line.
- It’s still at the same level as at age 14 and 16 → 190 cm.

> Answer: 190 cm

*(The line is flat from age 14 to 18, meaning no growth during those years.)*

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## ✔ Question 4: How old was Marco when he was 110 cm tall?

- Find 110 cm on the y-axis.
- Move right to the line.
- Drop down to the x-axis to find the age.
- The point is halfway between 6 and 8 → that’s 7 years old.

> Answer: 7 years old

*(Since 110 is halfway between 100 and 120, and the point is halfway between 6 and 8 on the x-axis.)*

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## ✔ Question 5: How old was Marco when he was 150 cm tall?

- Find 150 cm on the y-axis (halfway between 140 and 160).
- Move right to the line.
- Drop down to the x-axis.
- The point is halfway between 8 and 10 → that’s 9 years old.

> Answer: 9 years old

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## 🧾 Final Answers:

1. 170 cm
2. 190 cm
3. 190 cm
4. 7 years old
5. 9 years old

✔ All answers are based on accurate reading of the line graph’s data points.