Which one does not belong

Exercise and reference answers

Questions

1. Items

   1. Gravity
   2. Slope
   3. Gradient

   Odd item

   Gravity

2. Items

   1. Inclination
   2. Radius
   3. Intercept

   Odd item

   Radius

3. Items

   1. Zero slope
   2. Undefined slope
   3. Doubled slope

   Odd item

   Doubled slope

4. Items

   1. Collinear
   2. Parallel
   3. Intersecting

   Odd item

   Collinear

Instructions

Tap the item that does not fit with the others.

Explanation