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Pixar in a Box

Course: Pixar in a Box > Unit 10

Lesson 2: Mathematics of animation curves
Computing
Pixar in a Box
Animation
Mathematics of animation curves
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Linear interpolation

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Problem

The value of an avar controlling the y-coordinate of a ball is 400 in frame 14, and 220 in frame 20. The y-coordinate of the ball between those frames is determined by linear interpolation.
What is the value of the ball's y-coordinate in frame 19?
  • Your answer should be
  • an integer, like 6
  • a simplified proper fraction, like 3, slash, 5
  • a simplified improper fraction, like 7, slash, 4
  • a mixed number, like 1, space, 3, slash, 4
  • an exact decimal, like 0, point, 75
  • a multiple of pi, like 12, space, start text, p, i, end text or 2, slash, 3, space, start text, p, i, end text
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