Chapter 7.10, Problem 26CP

Explanation of Solution

Function “plot()”:

• • “plot()” function creates a line graph.
• • This function is accessible in the “matplotlib.pyplot” module.
• • This “plot()” function creates a line graph by joining the data points with straight lines.
• • The “plot()” function takes two lists as its input arguments.
• • The first list represents the X coordinates of all the data points.
• • The second list represents the Y coordinates of all the data points.

Syntax:

The “plot()” function has the following procedure in Python.

plt.plot(xcoordinates, ycoordinates)

Explanation:

Here,

• • “plot()” is the function that plots a line graph.
• • The variable “xcoordinates” is a list that contains the X coordinates of all data points.
• • The variable “ycoordinates” is a list that has the Y coordinates of all data points.

Example program:

The below example shows how to use the “plot()” function in Python.

#Import the files

import matplotlib.pyplot as plt

#Create a list to have the X coordinates of data points

xcoord = [1, 2, 3, 4]

#Create a list to have the Y coordinates of data points

ycoord = [2, 4, 6, 8]

#Call the function

plt...