Education Technology

Solution 10430: Finding the Y-intercept of a Function using the TI-85 and TI-86.

How do I find the y-intercept of a function with the TI-85 and TI-86?

Use the YICPT instruction to find the y-intercept using the TI-85 and TI-86. Please refer to the example below.

Example: Find the y-intercept.
y= 2x+3

Graph the equations.
• Press [GRAPH] [F1]
• Input the equations.
• Press [2nd] [F5], the graph should now display the screen.
• Press [MORE] [F1] [MORE] [F2] (Press [MORE] [F1] [MORE] [F4] on the TI-85)
• Press [ENTER] for the result
The screen will display the y-intercept.