There is no rectangle but the formula is

Answer:
Point slope form:
The equation of line is given by:
.....[1]
where m is the slope and a line contains a point
.
As per the given statement:
Slope(m) = 3
. = (2, 1)
Substitute these in [1] we have;

therefore, the point slope form of a line with slope 3 that contains the point (2, 1) is; 
Answer:The answer is It has no slope because x2 - x1 in the formula m=y2-y1-x2-x1 is zero, and the denominator of a fraction cannot be zero
Step-by-step explanation:
I did the quiz
Answer:A part of a line-it has one endpoint and continues on and on in only one direction. Angle. Formed by two rays that have the same endpoint.
Step-by-step explanation: