Think about what you know about single linear equations and inequalities, along with what you've learned about systems of linear equations and inequalities. List some similarities and differences between two-variable systems of
linear equations and of linear inequalities. Although you haven't solved either type of system yet, what similarities
and differences do you think there might be in the solutions to these systems?
[Hint Recall that the solution of a one-variable linear equation (for example, 5 = x) is a single point on a number line.
The solution of a one-variable linear equality (example, x<5) is a segment or region on a number line. To display
solutions to two-variable linear equations and inequalities, we use a two-dimensional graph with x and y
coordinates.)