IB Maths AI HL Ahl 3 11 Hl Vector Equations of Lines Questions

Practise forming vector equations of 2D or 3D lines, converting to parametric form and interpreting position, direction and intersection information.

Syllabus
First assessment 2021
Course
Mathematics: applications and interpretation HL
Level
HL

Exam points

  • Form a 2D or 3D vector equation r=a+λb from a point and direction vector.
  • Convert a vector line equation to parametric form and determine coordinates for a given parameter.
  • Interpret direction, position and intersection information from the line representation.

IB Maths AI HL Ahl 3 11 Hl Vector Equations of Lines Questions question 1

[Maximum number: 1]

François is a video game designer. He designs his games to take place in two dimensions, relative to an origin O . In one of his games, an object travels on a straight line L1L_{1} with vector equation

r=(11)+λ(21)r=\binom{-1}{1}+\lambda\binom{2}{-1}

Write down L1L_{1} in the form x=x0+λlx=x_{0}+\lambda l and y=y0+λmy=y_{0}+\lambda m, where l,mZl, m \in \mathbb{Z}.

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