Question

part 2: for questions 8-11, determine the independent and dependent variable.

1. the depth of the tire tread affects the braking distance of a car.

independent variable:
dependent variable:

1. a student tested the weight of a paper airplane and the distance it would fly and found that the weight of the paper airplane affects the distance it traveled.

independent variable:
dependent variable:

Explanation:

Question 8

The independent variable is the one that is manipulated or causes a change, and the dependent variable is the one that is affected. Here, tire tread depth is what affects braking distance, so tire tread depth is independent, and braking distance depends on it.

The weight of the paper airplane is the factor being tested to see its effect, so it's the independent variable. The distance the airplane travels depends on its weight, so that's the dependent variable.

Answer:

Independent variable: Depth of the tire tread
Dependent variable: Braking distance of a car

Question 9