1. Line (p-p₀)n=0

A simple way to find the equation of a line perpendicular to a vector.

2. Line p=(1-t)a+tb

Learn a new way to find the equation of a line given two points.

3. Line p=p₀+td

A somewhat simple way to find the equation of a line parallel to a vector.

4. Circle (p-c)(p-c)=r²

Given the center and radius of a circle, use vectors to find its equation.

5. Circle (p-a)(p-b)=0

Can you use vectors to find the equation of a circle, given two points?

6. Circle (p-c)(a-c)=r²

Can you use vectors to find a tangent line to a circle?

7. 3D Distance Norm

Find the distance between the tips of two vectors in 3-dimensional space.