• Variables: ,a symbol of a value we don't know yet. It is usually a letter.
,
• Constant: ,a number, it does not change.
The x value will change, will the numbers 7 and 5 are values already established. The number 3 that is multiplying x is called coefficient.
On the other hand, if we had:
In this case, we can assign any value for x (each time we assign a new value, the value of x changes), and we will get a result that will give us the value of y, which is dependent on the value of x.
Based on these definitions and evaluating the parameters given in the table, we can conclude that x and e are viariables from the top half of the box, while y and f are the variables of the bottom half of the box.
Answer:
• Top half: x, e
,
• Bottom half: y, f