Finding Parametric Equations In Exercises 55-58, find a set of parametric equations for the rectangular equation that satisfies the given condition:
55. y = 2x - 5, t = 0 at the point (3, 1)
56. y = 4x + 1, t = -1 at the point (-2, -7)
57. y = x^2, t = 4 at the point (4, 16)
58. y = 4 - x^2, t = 1 at the point (1, 3)