Linear Functions

SAT Math· difficulty 2/5

Water drains at V=1005tV = 100 - 5t gallons after tt minutes. The drain rate is:

  • A

    55 gal/min

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  • B

    100-100 gal/min

  • C

    100100 gal/min

  • D

    9595 gal/min

Explanation

Slope 5-5 means losing 55 gal/min, so drain rate is 55 gal/min.

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