The table below represents the distance of a car from its destination as a function of time:
Part A: What is the y-intercept of the function, and what does this tell you about the car? (4 points)
Part B: Calculate the average rate of change of the function represented by the table between x = 1 to x = 3, and tell what the average rate represents. (4 points)
Part C: What would be the domain of this function if the car traveled the same rate until it reached its destination? (2 points)
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First: let's assume that the relationship between x and y is linear. Then take any two points from the table,
and calculate the slope, using the slope formula.
If youi've forgotten that, please see:
850 - 800
m = —————
1 - 1
the y-intercept is b = 900, or, as a point, is (0,900).