Describe the relationship you would expect between the data. Explain.

1. time since a train's departure and the distance to its destination.

2. number of toppings on a pizza and the price of the pizza.

2 answers

Types of Relationships: Positive Linear Relationship, Negative Linear Relationship, Nonlinear Relationship, and No Relationship.
since

distance = speed * time
and (roughly)
cost = #toppings * price_per_topping,

what do you think?