在\(y = kx + b\)中，当\(x = 1\)时\(y = 2\)，当\(x = - 1\)时，\(y =

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在\(y = kx + b\)中，当\(x = 1\)时\(y = 2\)，当\(x = - 1\)时，\(y = - 4\)，则\(k\)和\(b\)的值是\((\)　　\()\)

A.\(\left\{ {\begin{array}{*{20}{l}} {k = - 3} \\ {b = 1.} \end{array}} \right.\)

B.\(\left\{ {\begin{array}{*{20}{l}} {k = - 3} \\ {b = - 1.} \end{array}} \right.\)

C.\(\left\{ {\begin{array}{*{20}{l}} {k = 3} \\ {b = 1.} \end{array}} \right.\)

D.\(\left\{ {\begin{array}{*{20}{l}} {k = 3} \\ {b = - 1.} \end{array}} \right.\)

参考答案：D