A description of a plane is given. Find an equation for the plane.

The plane that crosses thex-axis wherex= 1, they-axis wherey=2, and thez-axis wherez=3.

A description of a line is given. Find parametric equations for the line.

The line perpendicular to thexz-plane that contains the point (5,1,7).

(x(t),y(t),z(t)) =

Find the angle betweenuandv, rounded to the nearest tenth degree.

u=j+k,v=i+4j5k