Use vector notation to describe the points that lie in the given configuration.

a. the plane spanned by v1=(2,7,0) and v2=(0,2,7). (let s and t be elements of the reals.)

i(s, t)= ?

b. the line passing through (0,3,2) in the direction of 3i-k. (let t be element of the reals.)

i(t)=?

c. the line passing through (-1,-1,-1) and (3,-1, t be element of the reals.)

i(t)=?