\( 30 x + 21 y + 44 \)

Did you know that the expression \( 30x + 21y + 44 \) represents a linear equation in two variables? This means it can graph as a straight line on a coordinate plane! Each value of \( x \) corresponds to a unique value of \( y \), allowing us to visualize a relationship between the two variables. How cool is that? In real-world terms, equations like this one can model various scenarios. For instance, if \( x \) and \( y \) represent quantities of products sold, the expression might show the total revenue generated. Businesses can use such equations to forecast profits and make informed decisions based on their operations. Keep in mind!