Answer:
The minimum number of points required to make a plane is three.
Explanation:
The minimum number of points required to make a plane is three. But the condition is that the three points must be non co linear.
Let us understand this with the help of a diagram. Let there are three points in xyz-plane which are not colinear. The coordinates of points are A(1,0,0),B(0,1,0) and C(0,0,1). From the figure, we have
x-intercept = 1
y-intercept = 1
z-intercept = 1
When we join these points we'' get a plane. The equation of the plane in intercept form is given by

Therefore, we can conclude that there should be three non colinear points to make a plane.