Find where to buy the TI-84 Plus CE graphing calculator in a variety of bold, fun colors.
Download free 90-day trial versions of the most popular TI software and handheld emulators.
Explore lessons that cover essential, foundational mathematics concepts.
Enhance your teaching with a hands-on learning experience.
We are here to help with distance learning resources for schools and districts.
Texas Instruments
9-12
45 Minutes
In this activity, students will observe the slopes of the secant and tangent line as a point on the function approaches the point of tangency.
Using the draw menu, students will have a tangent line drawn at point P(1, 1). The equation of the line will appear on the screen.
Students will discuss how the secant and tangent lines compare to each other.
Students will approximate the instantaneous rate of change using the slope of the secant line.
TI websites use cookies to optimize site functionality and improve your experience. To find out more or to change your preferences, see our cookie policy page. Click Agree and Proceed to accept cookies and enter the site.
You can control your preferences for how we use cookies to collect and use information while you're on TI websites by adjusting the status of these categories.