PLEASE HELP I NEED HELP ASAP the graph shows the depth y in meters of a shark from the surface of an ocean for a certain amount of time, x, in minutes:
Part A: describe how you can use similar triangles to explain why the slope of the graph between points A and B is the same as the slope of the graph between points A and C
Part B: what are the initial values and slope of the graph, and what do they represent.
PLEASE SHOW ALL WORK​

Two groups of students were asked how many hours they spent reading each day. the table below shows the numbers for each group: group a 1 2 1 1 3 3 2 2 3 group b 3 2 3 2 2 2 1 1 2 based on the table, which of the following is true? the interquartile range for group a students is 0.5 less than the interquartile range for group b students. the interquartile range for group a students is equal to the interquartile range for group b students. the interquartile range for group a employees is 0.5 more than to the interquartile range for group b students. the interquartile range for group a employees is 1 more than the interquartile range for group b students.