Line Graph Worksheets - Free Printable

Let’s solve each question step by step using the double line graph.

We are looking at a graph that shows the number of male and female factory employees from 2001 to 2006.

The green line = Male employees
The purple line = Female employees

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Question 1: What year had the most number of female employees?

Look at the purple line (female). Find the highest point on that line.

- 2001: ~75
- 2002: ~100
- 2003: ~50
- 2004: ~150 ← highest!
- 2005: ~175? Wait — let me check again.

Actually, looking carefully:

In 2005, the purple line is at about 175.
In 2004, it’s at about 150.
In 2006, it drops to about 100.

So the highest point for females is in 2005, not 2004.

Wait — let me recheck the graph values more precisely.

Looking at the y-axis: each grid line is 25 units.

Purple line (female):

- 2001: halfway between 50 and 100 → ~75
- 2002: exactly on 100
- 2003: halfway between 25 and 50 → ~37.5? But maybe we round to nearest 25 → 50? Actually, looks like 50.
- 2004: on 150
- 2005: halfway between 150 and 200 → 175
- 2006: on 100

Yes — so 2005 has the highest number of female employees: 175

✔ Answer for Q1: 2005

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Question 2: How many employees worked in the year 2002?

Add male + female in 2002.

Male (green) in 2002: looks like 200
Female (purple) in 2002: 100

Total = 200 + 100 = 300

✔ Answer for Q2: 300

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Question 3: Which year had 225 male and female employees together?

We need to find a year where male + female = 225.

Check each year:

- 2001: male ≈ 150, female ≈ 75 → 150+75=225 ✔

That’s it! Let’s verify others just in case.

- 2002: 200 + 100 = 300
- 2003: male ≈ 250, female ≈ 50 → 300 ✘
- 2004: male ≈ 300, female ≈ 150 → 450
- 2005: male ≈ 275, female ≈ 175 → 450 ✘
- 2006: male ≈ 150, female ≈ 100 → 250 ✘

Only 2001 gives 225.

✔ Answer for Q3: 2001

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Question 4: What was the difference in the number of male and female employees in 2005?

In 2005:

Male (green): halfway between 250 and 300 → 275
Female (purple): halfway between 150 and 200 → 175

Difference = 275 - 175 = 100

✔ Answer for Q4: 100

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Question 5: Did the number of male employees increase or decrease during the period from 2001 to 2006?

Look at male employees (green line):

- 2001: ~150
- 2002: ~200 → increased
- 2003: ~250 → increased
- 2004: ~300 → increased
- 2005: ~275 → decreased
- 2006: ~150 → decreased

Overall, from start (2001: 150) to end (2006: 150), it’s the same.

But the question says “during the period” — meaning over the whole time span.

From 2001 to 2006, it went up then down, ending at same level.

But typically, if it ends where it started, we say “no change” — but let’s see what the graph shows.

Actually, 2001: 150, 2006: 150 → so no net change.

But the question might be asking about trend — did it generally go up or down?

Looking at the path: it rose until 2004, then fell sharply.

Since it ended at same as start, technically “neither increased nor decreased overall”.

But let’s check exact values:

Assume:

2001: 150
2006: 150 → difference = 0

So, no change? But the options probably expect “increased”, “decreased”, or “stayed the same”.

Wait — perhaps I misread 2006.

Looking again: in 2006, green line is at 150? Yes.

But let’s compare 2001 and 2006 directly.

Both at 150 → so no change.

However, sometimes questions like this mean “did it ever increase?” — but no, it asks “during the period from 2001 to 2006” — which implies overall change.

But let’s see the actual data points:

If 2001 = 150, 2006 = 150 → difference = 0 → so neither increased nor decreased.

But maybe the graph shows 2006 slightly below? No, looks equal.

Alternatively, perhaps the question expects us to say “it increased then decreased”, but the wording is “increase or decrease” — implying direction of change from start to end.

Since start and end are same, answer should be “neither” or “remained the same”.

But let’s check the problem again — it says “Did the number... increase or decrease...”

In many such problems, if it ends same, they accept “no change” or “remained constant”.

But since the instruction is to choose between increase/decrease, and it didn’t do either overall, perhaps we say “it did not increase or decrease overall”.

Wait — let me look at the graph one more time.

Actually, in 2001, male is at 150. In 2006, male is also at 150. So total change is zero.

Therefore, the number did not increase or decrease — it stayed the same.

But the question may expect “decreased” because after peak it fell? No, that’s not accurate.

Perhaps I made a mistake in reading 2006.

Another thought: maybe 2006 male is 125? Let me estimate again.

Y-axis: 0, 25, 50, 75, 100, 125, 150, 175, 200, 225, 250, 275, 300, 325, 350, 375, 400

Green line in 2006: it's at 150 — same as 2001.

So, final answer: remained the same or no change

But since the question says “increase or decrease”, and it did neither, perhaps we say “neither”.

However, in educational contexts, sometimes they consider the overall trend. From 2001 to 2004 it increased, then decreased to original level.

I think safest is to say: It remained the same from 2001 to 2006.

But let’s see if there’s a trick.

Perhaps the question is poorly worded, but based on data, start and end are equal.

✔ Answer for Q5: remained the same or no change

But to match typical answers, perhaps "neither increased nor decreased"

Since the user will see the graph, and 2001 and 2006 are both 150, I'll go with that.

Final decision: The number of male employees remained the same from 2001 to 2006.

But the question is yes/no style? No, it's open.

Answer: remained the same

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Now, compiling all answers:

Q1: 2005
Q2: 300
Q3: 2001
Q4: 100
Q5: remained the same

But for Q5, let's confirm with exact values.

Assume:

2001 male: 150
2006 male: 150 → difference 0 → so no increase or decrease.

Yes.

Final Answer:

1. 2005
2. 300
3. 2001
4. 100
5. remained the same

But for Q5, perhaps the expected answer is "decreased" if they think 2006 is lower? But it's not.

I think it's correct.

Let me write the final answers clearly.