straight   2 videos

• 

  Angles: Types and Labeling

  Geometry Geometry Building Blocks

  How to label an angle and how to differentiate between acute, right, obtuse, and straight angles.

  angle acute right obtuse straight vertex side
• 

  Motion Along a Line

  Precalculus Vectors and Parametric Equations

  How to write equations describing motion in a straight line given the velocity and the position when t=0.

  velocity constant velocity position vector equation of a line parametric equations parametric equations of a line