Write the equation of the line that passes through the points (-1,-4) and (9, –5). Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?