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19.07.2019 •
Mathematics
Adriver on a highway with little traffic decides to use cruise control. she notices that she passes mile marker 47 when she turns the cruise control on. thirty-six minutes later, she is just passing mile marker 86. draw a graph to represent this situation and determine the driver's average speed in miles per hour.
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Ответ:
At x=60, representing 1 hour on cruise control, the line will have a y-value of 112, indicating the driver has just passed mile marker 112, which is
112 -47 = 65
miles from when cruise control was first turned on.
The driver's average speed is 65 miles per hour.
Ответ:
x = (1/2) (6 – 2) + 2 and y = (1/2) (4 – 6) + 6
so
x = (1/2) (4) + 2 and y = (1/2) (-2) + 6
x = 2 + 2 and y = -1 + 6
x = 4 and y =5
so T(4,5)
ans is C