cornpops4037
08.07.2019 •
Mathematics
What are the solutions of the system of equations for x + y = 2 and y = -1/4 x^2 + 3
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Ответ:
Use substitution
from first equation: y = 2 - x
Substitute in the 2nd equation:-
2 - x = -1/4x^2 + 3
-1/4 x^2 + x + 1 = 0
solving this gives x = -0.83, 4.83
Giving y = 2 - -0.83 = 2.83 , 2 - 4.83 = -2.83
Answer (-0.83, 2.83) and (4.83, -2.83)
Ответ: