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Linear Functions

SAT Math· difficulty 3/5

The function ff satisfies f(−2)=7f(-2) = 7 and f(6)=−9f(6) = -9. What is the slope of ff if it is linear?

  • A

    12\dfrac{1}{2}

  • B

    −1-1

  • C

    −2-2

    check_circle
  • D

    22

Explanation

(−9−7)/(6−(−2))=−16/8=−2(-9 - 7)/(6 - (-2)) = -16/8 = -2.

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