How can you use direct variation to solve real life problems?

A good question

Suppose we have to pay up the parking bill at a mall

ON THE BILL BOARD IT SAYS |________|

|

|

| | | |_________

now what would you do

you would use direct variation

let me make a table

let x be the cost

|

hours parked __ cost

Direct variation can be used to solve real-life problems by identifying situations where one quantity varies directly with another. In mathematical terms, this means that as one variable increases, the other variable also increases proportionally, or as one variable decreases, the other variable decreases proportionally. This relationship can be represented by the equation y = kx, where y is the dependent variable, x is the independent variable, and k is the constant of variation. By recognizing direct variation relationships in real-life scenarios, such as the relationship between distance and time traveled at a constant speed, or the relationship between cost and quantity purchased at a constant unit price, we can use direct variation to predict or calculate one quantity based on the other.