How do you rewrite the sum of 60 + 90 as the product of the gcf of the two numbers and a sum

Find parametric equations for the line. (enter your answers as a comma-separated list of equations. let x, y, and z be functions of t.) the line in the direction of the vector 5 i + 5 j − 6k and through the point (−4, 4, −2).

Whats the name of the vertical axis

Which geometric principle is used to justify the construction below?