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Linear Functions

SAT Math· difficulty 4/5

The line y=(k−2)x+3y = (k-2)x + 3 has yy-intercept 33 and is parallel to y=5x−1y = 5x - 1. What is kk?

  • A

    55

  • B

    15\dfrac{1}{5}

  • C

    77

    check_circle
  • D

    33

Explanation

Parallel lines have equal slopes: k−2=5⇒k=7k - 2 = 5 \Rightarrow k = 7.

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