What are the solutions to the following system of equations? Select the correct answer below.

2 answers:

7 0

      y = x² - 4x + 8
4x + y = 12

   4x + y = 12
4x + (x² - 4x + 8) = 12
x² + 4x - 4x + 8 = 12
       x² + 8 = 12
      - 8 - 8
   x² = 4
      x = ±2
   4x + y = 12
4(2) + y = 12
   8 + y = 12
   - 8 - 8
   y = 4

    4x + y = 12
4(-2) + y = 12
    -8 + y = 12
+ 8    + 8
   y = 20

(x, y) = (2, 4) and (-2, 20)

ICE Princess25 [194]2 years ago

6 0

the answer to this question is (2, 4) and (−2, 20)

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