Choose a linear function for the line represented by the point-slope equation y - 5 = 3(x - 2). O f(x) = 3x + 1
O f(x) = 3x - 1
O f(x) = 8x + 10
O f(x) = 8x – 10

Aboat has a speed of 9 mph in calm water. it takes the boat 4 hours to travel upstream but only 2 hours to travel the same distance downstream. which equation can be used to find c, the speed of the current? 2(9 – c) = 4(9 + c) 9 + c = 4(9 – c) 9 – c = 2(9 + c) 4(9 – c) = 2(9 + c)