The speed of a train of a train 60 miles per in 2 hours the train will cover (blank) miles in 4 hours the train will cover (blank) miles. the train covered miles in 4 hours than it did in 2 hours

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.