When the coordinates (1, 1), (2, 3), (5, 3), and (4, 1) are joined, which shape is formed? a. parallelogram b. rectangle c. rhombus d. square and if you can explain how you did it because i'm about to take a test on it

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

i believe that the answer is

b. y-1=-2(x-4)

hope this !