\[Стр.\ 5.\]
\[\boxed{\mathbf{3.}}\]
\[\boxed{\mathbf{4.}}\]
\[A\left( - 1\frac{3}{4} \right);\]
\[B( - 1);\]
\[C\left( - \frac{1}{2} \right);\]
\[X(0);\]
\[M\left( \frac{1}{2} \right);\]
\[D\left( 1\frac{1}{4} \right).\]
\[\boxed{\mathbf{5.}}\]
\[\boxed{\mathbf{6.}}\]
\[\textbf{а)}\]
\[\textbf{б)}\ \]