Graphing is really helpful when you're checking answers to linear equations. Here’s why it's a good idea:

• Seeing the Solution: When you draw the graph of an equation, you can see where the line crosses the x-axis and y-axis. If your answer, like $(x,y)$, is on that line, you know it's right.

• Finding Mistakes: If your point isn't on the line, you can easily spot where you went wrong. It could be a small math mistake or maybe you didn’t understand the equation correctly.

• Understanding How They Relate: Graphing helps you see how changes in $x$ affect $y$. This makes the relationship described by the equation clearer.

For example, with the equation $y = 2x + 1$, if you plot a few points, you’ll get a better idea of what this equation means. So, graphing really helps you solve equations without guessing!