Задание 13 стр 165

Question

Отметьте на числовой оси несколько точек, которые удовлетворяют неравенствам: a) x > 2; b) x < 5; c) x > –1; d) x < 0.

Gimli · Accepted Answer

\begin{enumerate}[label=\alph*)] \item $x>2$: \begin{figure}[H] \centering \begin{tikzpicture}[>=stealth]\centering \draw[->] (0,-3) -- (6,-3); ode at (2,-3.2){$2$}; ode at (0,-3.2){$0$}; ode at (3,-3.2){$3$}; ode at (4, -3.2){$4$}; \fill (3,-3) circle[radius=1.5pt]; \fill (4,-3) circle[radius=1.5pt]; ode at (4, -2.8){$/////////////////////$}; \end{tikzpicture} \end{figure} (например 3 и 4) \item $x<5$:\begin{figure}[H] \centering \begin{tikzpicture}[>=stealth]\centering \draw[->] (0,-3) -- (6,-3); ode at (2,-3.2){$3$}; ode at (0,-3.2){$0$}; ode at (3,-3.2){$4$}; ode at (4, -3.2){$5$}; \fill (3,-3) circle[radius=1.5pt]; \fill (0,-3) circle[radius=1.5pt]; \fill (2,-3) circle[radius=1.5pt]; ode at (2, -2.8){$//////////////////////$}; \end{tikzpicture} \end{figure} (например 0; 3 и 4) \item \begin{figure}[H] \centering \begin{tikzpicture}[>=stealth]\centering \draw[->] (0,-3) -- (6,-3); ode at (2,-3.2){$3$}; ode at (0,-3.2){$-1$}; ode at (3,-3.2){$4$}; ode at (4, -3.2){$5$}; \fill (3,-3) circle[radius=1.5pt]; \fill (4,-3) circle[radius=1.5pt]; \fill (2,-3) circle[radius=1.5pt]; ode at (2.2, -2.8){$//////////////////////$}; \end{tikzpicture} \end{figure} (например: 3; 4 и 5) \item $x<0$: \begin{figure}[H] \centering \begin{tikzpicture}[>=stealth]\centering \draw[->] (0,-3) -- (6,-3); ode at (2,-3.2){$-2$}; ode at (0,-3.2){$-4$}; ode at (3,-3.2){$-1$}; ode at (4, -3.2){$0$}; \fill (3,-3) circle[radius=1.5pt]; \fill (0,-3) circle[radius=1.5pt]; \fill (2,-3) circle[radius=1.5pt]; ode at (2, -2.8){$//////////////////////$}; \end{tikzpicture} \end{figure} (например: -4; -2 и -1) \end{enumerate}

Задание 13 стр 165

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Задание 13 стр 165

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