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alinargebaeva
@alinargebaeva
July 2022
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прямая y=kx b проходит через точки А(1;3) В(2;1).Определите значение коэффицентов k и b.В ответ запишите k+b.
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ShirokovP
Verified answer
Y = kx + b
k = 3 - b
1 = 2k + b
1 = 2( 3 - b) + b
1 = 6 - 2b + b
1 = 6 - b
b = 5
k = 3 - b = - 2
k + b = - 2 + 5 = 3
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Answers & Comments
Verified answer
Y = kx + bk = 3 - b
1 = 2k + b
1 = 2( 3 - b) + b
1 = 6 - 2b + b
1 = 6 - b
b = 5
k = 3 - b = - 2
k + b = - 2 + 5 = 3