Use a graphing calculator or computer and the result of Exercise 37(a) to draw the triangle with vertices A(1, 1), B(4, 2), and C(1, 5).

Data From Exercise 37:

(a) Show that the parametric equations

x = x₁ + (x₂ − x₁)t    y = y1 + (y₂ − y₁)t

where 0 ≤ t ≤ 1, describe the line segment that joins the points P₁(x₁, y₁) and P₂(x₂, y₂).

(b) Find parametric equations to represent the line segment from (−2, 7) to (3, −1).