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Linear Functions

SAT Math· difficulty 4/5

A book club has 50 members, gaining 3 per month. Members MM after tt months:

  • A

    M=53tM = 53t

  • B

    M=3t+50M = 3t + 50

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  • C

    M=50−3tM = 50 - 3t

  • D

    M=50t+3M = 50t + 3

Explanation

Initial 5050, growth rate 33/month.

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