Question

OPEN ENDED QUESTION

Athena paid a $4.00 tip on a $20.00 dinner bill. She said the
cost of the dinner bill was the dependent variable, and the tip
cost was the independent variable. What's wrong with her
thinking?

Answer 1

The independent variable is the bill, and the dependent variable is the tip.

Explanation:

The independent variable means it can stand alone on it's own. The bill will always be $20 because that's how much the food costs. The tip will be different depending on how much the bill is.