I was wondering if:

Question

𝚥 = (0,1,0) is in the 𝑦𝑧 plane. True or False?

and if

(1,8) is a point on the line: 𝑟 = (1,5) + 𝑡 (0,3). True or False?

Thank u :)))

Answer 1

well (1,0,1) is one unit over from the origin on the y-axis, so it must be on y-z plane
so true

b) let t=1,what do you get?