Question

Is 5x = -7y - 2 a linear equation in two variables?

Answer 1

Yes, the equation

5

�

=

−

7

�

−

2

5x=−7y−2 is a linear equation in two variables,

�

x and

�

y. This equation is linear because the highest power of the variables,

�

x and

�

y, is 1. It represents a straight line when graphed, which is a characteristic of linear equations in two variables.