Education Technology

Explorations with Coding: Integer Quadratic Zeros

by Texas Instruments


  • Use the input function and a variable to collect and store data from a user
  • Use the randint() function to generate random integers.
  • Use a while loop to repeat code
  • Use if..elif..else statements to make decisions.
  • Explore how x-intercepts are related to factored quadratic equations
  • Explore how to factor equation in standard form
  • Factor quadratic equations with integer solutions

About the Lesson

In this lesson, students will learn how to find the x-intercepts for equations in the form y = (x – x 1)(x – x 2). 

Students will explore how factored equations in the form
y = (x – x 1)(x – x 2) can be rewritten in a standard form
y = x2 + bx + c.  

Students will create a game that will let you practice finding integer x-intercepts for equations of the form
y = x2 + bx + c.


Note: This lesson requires the use of TI-Nspire™ CX II technology with OS 5.2 and above.