Download free 90-day trial versions of the most popular TI software and handheld emulators.
Check out TI Rover activities that put math, science and coding in motion.
Customize your summit experience with sessions on math, STEM, coding and more.
Texas Instruments
9-12
15 Minutes
TI-Nspire™TI-Nspire™ CAS
3.2
Published on 05/24/2013
In this activity, students will observe different graphs of polar limaçon curves. Students will discover four different types of limaçon curves and their relationship to the ratio of a to b.
Students begin by exploring limaçon graphs in the form r = a ± b sin(q) or r = a ± b cos(q). Students will view several cardioids to see the effects of a and b on the graphs.
Students will also explore what effects addition and subtraction have on the graph, as well as sine versus cosine.