Equation of a Line Through two Points in 3 D
Below is shown a line through two points \( P(x_p,y_p,z_p) \) and \( Q(x_q,y_q,z_q) \).
Three forms of the equation of the line:

Below is shown a line through two points \( P(x_p,y_p,z_p) \) and \( Q(x_q,y_q,z_q) \).
Three forms of the equation of the line:
