. On your cell phone bill you are charged a $25 fee and $0.25 for each text you send what is the independent variable and what is the dependent variable

Question

I am learning about independent and dependent variables and need some helo

Answer 1

The amount of the bill is dependent on the number of texts sent. Let y be the bill amount and x the number of texts. Then x is independent and y is dependent. This is because x can be any non-negative number, but y depends upon it. You cannot find the bill without knowing the number of text messages, right?

 

The next step will be to write an equation in x and y, but that will come later.