You are driving along the open highway on a cross-country road trip, cruising at a steady speed of 606060 miles per hour.
What is the slope of the line representing this relationship?
The slope is .
Graph the proportional relationship d=60t\,d=60td, equals, 60, t that expresses your distance traveled ddd (in miles) in terms of time ttt (in hours) since you started going 60\, \text{mph}60mph60, start text, m, p, h, end text.