State the coordinates of this point

The coordinates are (-8,7).

Step-by-step explanation:

To find the coordinates, count the number of lines from the last marked line. The x coordinate will be found by counting the numbers side to side. In this case, the x is -8. The y coordinate is found by counting the numbers up and down. In this case, the y is 7.

2nd one in the first row is correct

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