The table below represents the distance of a train from its destination as a function of time: Time
(hours)
x Distance
(miles)
y
0 630
1 540
2 450
3 360
4 270

Part A: What is the y-intercept of the function, and what does this tell you about the train? (2 points)

Part B: Calculate(show work) the average rate of change of the function represented by the table between x = 1 to x = 4 hours, and tell what the average rate represents. (4 points)

Part C: Write an equation for the function using slope-intercept form. Describe the steps to graph the function using the slope-intercept form.(2 points) State the labels on the x and y axes. (2 points)

(10 points)