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drek231 [11]
3 years ago
14

The table below represents the distance of a train from its destination as a function of time: Time (hours) x Distance (miles) y

0 665 1 570 2 475 3 380 4 285 Part A: What is the y-intercept of the function, and what does this tell you about the train? (4 points) Part B: Calculate 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: What would be the domain of the function if the train continued to travel at this rate until it reached its destination? (2 points)
Mathematics
1 answer:
stiv31 [10]3 years ago
3 0
A.  y=-95x+665  y-intercept is 665
B.  Ave rate of change is -95
C.  y=0 so x=7 Domain is [0,7]
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