A. Using the point-slope form: y - 2 = 4(x - 1) y = 4x - 2
B. We plug the point into the equation to see if it is satisfied: 24 = 4(7) - 2 24 = 26; This is not true so the point is not on the ship's path
C. The slope of this ship's motion is -1/4, which is the negative reciprocal of the first ship's slope. Therefore, the ships are moving in perpendicular to one another.