Question #e5ffd

2 Answers
Sep 7, 2017

The equation is very much linear.

Explanation:

Linear equations are defined by the fact that the variables do not appear various in powers greater than 1 or that there are no terms containing products of variables (cross terms).

Thus, in the equation #-12x - 11y = 14#, the variables #x# and #y# appear in their first power and not in powers higher than 1.
Therefore, the equation is linear.

Consider the equations,

#x^2 + 2y = 0# and #x + 2xy + y = 0#

None of these are linear : In the first one, #x# appears in the second power and in the second one, we have a term #xy# which ensures that linearity condition is not satisfied.

Sep 7, 2017

The equation is very much linear.

Explanation:

Linear equations are defined by the fact that the variables do not appear various in powers greater than 1 or that there are no terms containing products of variables (cross terms).

Thus, in the equation #-12x - 11y = 14#, the variables #x# and #y# appear in their first power and not in powers higher than 1.
Therefore, the equation is linear.

Consider the equations,

#x^2 + 2y = 0# and #x + 2xy + y = 0#

None of these are linear : In the first one, #x# appears in the second power and in the second one, we have a term #xy# which ensures that linearity condition is not satisfied.