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Linear Functions

SAT Math· difficulty 4/5

Two cars start 200200 miles apart and drive toward each other at 4040 mph and 6060 mph. After tt hours, the distance between them is:

  • A

    100t−200100t - 200

  • B

    200+100t200 + 100t

  • C

    200−100t200 - 100t

    check_circle
  • D

    200−20t200 - 20t

Explanation

Combined closing speed =100= 100 mph. Distance =200−100t= 200 - 100t.

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