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### Course: Pixar in a Box>Unit 11

Lesson 2: Calculating parabolas

# 3. Compute the touching point

Let's apply what we just learned to calculate the touching point. You can explore the interactive program used in this video here.

## Want to join the conversation?

• i dont get the touching point
• The touching point is the point where a line segment touches another line segment but does not cross it.
• Hello, I'm Louis Hynes! If you have watched "A Series of Unfortunate Events by Lemony Snicket", then you may know I played Klaus Baudelaire. I am a professional grammarian and studied grammar for about 2--is that right? Yeah, 2 years. Just had to double-check there. Anyways, whoever watched "A Series of Unfortunate Events by Lemony Snicket" knows me as the "bookworm". So, reply to me if you know Klaus.
• im in the 6th grade should i be learning this
• Yes you should be if you want to animate.
(1 vote)
• what grade is this lesson because i'm really confused?
• I think it is a computer programming talk-through
(1 vote)
• Would "tb" at represent multiplication like: t times b or would it mean t plus b?
• tB means multiplication. In general when variables are next to eachother it means multiplication.
(1 vote)
• I understand everything in the video but I still have problems with calculating the touching point. I am in 8th grade and have mastered Algebra 1. Should I be able to do this or is this exercise intended for older students? I love learning and want to be able to understand this.