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16 September, 09:07

This system has one solution.

{y=6x-11

{y=x^2+4x-10

What is the y-coordinate of the solution?

+1
Answers (1)
  1. 16 September, 09:30
    0
    Hello:

    {y=6x-11

    {y=x²+4x-10

    x²+4x-10 = 6x-11

    x²+4x-10-6x+11 = 0

    x²-2x+1=0

    (x-1) ²=0

    x-1 = 0

    x = 1

    the y-coordinate of the solution is y = 6 (1) - 11 = - 5
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