Determine Whether the Planes Are Parallel,orthogonal,or Neither $\begin{array} { l } 3 x - z = 3 \\7 x + y + 21 z = 7\end{array}$

question 54

Multiple Choice

Determine whether the planes are parallel,orthogonal,or neither. $\begin{array} { l } 3 x - z = 3 \\7 x + y + 21 z = 7\end{array}$

• A)Neither
• B)Parallel
• C)Orthogonal

---

Definitions:

Phallic

Pertains to the third stage in Freud's psychosexual development theory where the child's libido (sexual energy) is focused on the genital area.

Psychosexual Development

A Freudian theory highlighting the series of childhood stages where the libido (sexual energy) focuses on distinct erogenous zones.

Oral

Pertaining to the mouth; often used to describe the first psychosexual stage in Freudian psychology where the mouth is the primary source of pleasure.

Defence Mechanism

Psychological strategies employed by individuals to cope with reality and maintain self-image.