Someone please help i need an explanation and answer fast A submarine was stationed 700 feet below sea level. It ascends 250 feet every hour. If the submarine continues to ascend at the same rate, when will the submarine be at the surface?

15 points!​

Part 1: use the graph to count the slope of the line that passes through the points (2,1) and (2,0).part 2 in two or more complete sentences,explain why it is not possible to write the equation of the given line in the traditional version of the point-slope form of a line