Line colors and width in Matplotlib - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to set the line color to red.

Matplotlib

import matplotlib.pyplot as plt
plt.plot([1, 2, 3], [4, 5, 6], color=[1])
plt.show()

Drag options to blanks, or click blank then click option'

A'blue'

B'yellow'

C'green'

D'red'

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting quotes around the color name.

Using an invalid color name.

The color parameter sets the line color. Here, 'red' makes the line red.

2fill in blank

medium

Complete the code to set the line width to 3.

Matplotlib

import matplotlib.pyplot as plt
plt.plot([1, 2, 3], [4, 5, 6], linewidth=[1])
plt.show()

Drag options to blanks, or click blank then click option'

A3

B1

C5

D0.5

Attempts:

3 left

💡 Hint

Common Mistakes

Using a string instead of a number.

Choosing a very small number that makes the line hard to see.

The linewidth parameter controls the thickness of the line. Setting it to 3 makes the line thicker.

3fill in blank

hard

Fix the error in the code to set the line color to blue.

Matplotlib

import matplotlib.pyplot as plt
plt.plot([1, 2, 3], [4, 5, 6], color=[1])
plt.show()

Drag options to blanks, or click blank then click option'

A'blue'

BBLUE

C"blue"

Dblue

Attempts:

3 left

💡 Hint

Common Mistakes

Using the color name without quotes.

Using uppercase letters without quotes.

The color value must be a string with quotes. 'blue' or "blue" works, but here only one option is correct to avoid ambiguity.

4fill in blank

hard

Fill both blanks to set the line color to green and width to 2.

Matplotlib

import matplotlib.pyplot as plt
plt.plot([1, 2, 3], [4, 5, 6], color=[1], linewidth=[2])
plt.show()

Drag options to blanks, or click blank then click option'

A'green'

B1

C2

D'red'

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up color and linewidth values.

Using numbers for color or strings for linewidth.

Use 'green' for the color and 2 for the line width to get a green line with thickness 2.

5fill in blank

hard

Fill all three blanks to create a blue line with width 4 and label it 'My Line'.

Matplotlib

import matplotlib.pyplot as plt
plt.plot([1, 2, 3], [4, 5, 6], color=[1], linewidth=[2], label=[3])
plt.legend()
plt.show()

Drag options to blanks, or click blank then click option'

A'blue'

B4

C'My Line'

D'red'

Attempts:

3 left

💡 Hint

Common Mistakes

Forgetting quotes around the label.

Using a string for linewidth or number for color.

Set color='blue', linewidth=4, and label='My Line' to create a thick blue line with a label shown in the legend.