question_answer 43)

Find the coordinates of the points where the line through (5, 1, 6) and (3, 4, 1) crosses the yz-plane. 

Answer:

Equation of line through points (5, 1, 6) and (3, 4, 1) is given by             i.e.    ?.. (1)       It crosses the yz-plane at the point where x = 0,       So put x = 0 in equation (1)               Taking fires and second, we get             Taking first and last, we get,              required point is