Linear Functions

SAT Math· difficulty 3/5

Which of the following tables represents a linear function?

  • A

    x: 0,1,2,3 | y: 2,5,8,11

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  • B

    x: 1,2,3,4 | y: 1,1,2,3

  • C

    x: 0,1,2,3 | y: 1,2,4,8

  • D

    x: 1,2,3,4 | y: 1,4,9,16

Explanation

Constant first differences (+3+3) indicate a linear function.

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