Respuesta :

The slope is the change in y divided by the change in x.

The slope is the ratio of rise to run.

The slope is the rate of change of the function at a certain point.

The slope is the first derivative of a function.



Accordingly, the slope of this line d=420-65t is the coefficient of variable "t" if we consider that d for the dependent variable and t for the independent


Therefore

slope = - 65



I hope you got the idea