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What is the equation of the trend line in the scatter plot ?

Which undefined geometric term is described as a location on a coordinate plane that is designed by an ordered pair (x,y) ?

Aline passes through 3,7 and 6,9 what equation represents the line

Gravel is being dumped from a conveyor belt at a rate of 25 ft3/min, and its coarseness is such that it forms a pile in the shape of a cone whose base diameter and height are always equal. how fast is the height of the pile increasing when the pile is 14 ft high? (round your answer to two decimal places.) ft/min