Janeappmarinefore
Janeappmarinefore Janeappmarinefore
  • 14-09-2016
  • Mathematics
contestada

A student is running a 3-kilometer race. He runs 1 kilometer every 2 minutes. Select the function that describes his distance from the finish line.

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HomertheGenius
HomertheGenius HomertheGenius
  • 16-09-2016
x - number of minutes;
f ( x ) - the distance from the finish line.
   x :        0     2      4      6
f ( x ) :    3      2      1     0
f ( x ) = 3 - x/2
Answer: B ) f ( x ) = -1/2 x + 3
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