Show Function - Python Programming Exercise

This Python program "draws" the graph of the function y = (x-4)² by displaying a series of asterisks on the screen. For each x value ranging from -1 to 8, the program calculates the corresponding y value using the equation and then prints that number of asterisks. This allows the user to visually interpret the shape of a parabola by observing how the number of asterisks changes with each value of x. The program provides an excellent opportunity to practice loops and function plotting in Python. By iterating through the integer values of x, it demonstrates how mathematical functions can be represented graphically using text characters. This graphical representation of the function is a simple but effective way to understand the nature of quadratic equations and to see how the output values grow and shrink as x moves across the specified range.

 Category

Python Data Types

 Exercise

Show Function

 Objective

Develop a Python program to "draw" the graph of the function y = (x-4)^2 for integer values of x ranging from -1 to 8. It will display as many asterisks on the screen as the value obtained for "y", like this:

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 Example Python Exercise

 Copy Python Code 
# Loop through integer values of x from -1 to 8
for x in range(-1, 9):
    y = (x - 4) ** 2  # Calculate the value of y using the given function
    print('*' * y)  # Print y number of asterisks

 Output

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