How to Find the Equation of a Line Using a TI-84 Graphing Calculator


In mathematical terms, the equation that represents a graph line is expressed as "Y = AX + B." If you have graphed a line on your TI-84 graphing calculator, you don't actually have to perform separate mathematical equations in order to find the equation that represents this line. You can find the equation of a line on your TI-84 in just a couple of button-presses.

  • Press "Stat" on your TI-84 calculator.

  • Select the "Calc" option.

  • Choose the "LinReg" (short for "Linear Regression") option on screen.

  • Select the "Enter" key. This will provide you with the values for "A" and "B" in the line you graphed on your calculator.

  • Plug the numbers you just calculated into the "y= ax + b" equation. For example, if the TI-84 told you that "A=50" and "B=20", the equation that represents the line would be "y= 50x + 20."


Promoted By Zergnet


You May Also Like

Related Searches

Read Article

Make an Ikea Lack Table Look Expensive With This Cheap Hack

Is DIY in your DNA? Become part of our maker community.
Submit Your Work!