I'm stuck on this question. Help please.

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

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Technicians have installed a center pivot, circular irrigator for a farm that covers 25 acres. a.) how long is the irrigation boom (in feet) from the center pivot to its farthest extent? b.) if the irrigation boom makes 4 full revolutions in a day, how many miles does the end of the boom travel in 5 days?