In Exercises 3-6, think of each segment in the diagram as part of a line. All the angles are right angles. Which
line(s) or plane(s) contain point B and appear to fit the
description? (See Example 1.)
B
D
A
G
H
E
3. line(s) parallel to CD
4. line(s) perpendicular to CD
5. line(s) skew to CD
6. plane(8) parallel to plane CDH

is only a line? i think so

answer: do we write it

step-by-step explanation:

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.