Precalculus

What is the sum of 3 apples and 4 oranges? This classic statement highlights the difficulties in comparing the incomparable. At least, incomparable in one regard. Because, of course, it’s commonplace and perfectly correct to reply that the answer is “7 fruit.” In this context of different fruits, adding together apples and oranges makes perfect […]

Think about when you learned algebra for the first time. On that seemingly uneventful day of middle school, the letter “x” is carefully scrawled onto the class whiteboard, and all of a sudden the world of functions, systems of equations, and incomprehensible word problems smashes its way into your mind like a battering ram of