Aplane contaains at least how many points

A plane is any 2 dimensional figure, so the least amount of points you can use to make a 2 dimensional figure is 3, which corresponds to a triangle

A plane contains at least 3 (noncollinear) points.

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!

b and c

step-by-step explanation: