\[\boxed{\text{363\ (363).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[y = - x^{2}\]
\[1)\ область\ определения:\]
\[все\ числа;\]
\[2)\ область\ значений:\]
\[все\ неположительные\ числа;\]
\[3)\ нули\ функции\ в\ точке\ (0;0);\]
\[y = - x^{2}\]
\[x\] | \[1\] | \[2\] | \[- 1\] | \[- 2\] |
---|---|---|---|---|
\[y\] | \[- 1\] | \[- 4\] | \[- 1\] | \[- 4\] |
\[\boxed{\text{363.}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[f(x) = \left\{ \begin{matrix} x^{2},\ \ если\ x \leq 0\ \ \ \ \ \\ x + 1,\ \ если\ x > 0 \\ \end{matrix} \right.\ \]
\[1)f( - 7) = x^{2} = ( - 7)^{2} = 49\]
\[f(0) = x^{2} = 0\]
\[f(2) = x + 1 = 2 + 1 = 3\]
\[2)\ f(x) = x^{2}\]
\[x\] | \[1\] | \[2\] | \[- 1\] | \[- 2\] |
---|---|---|---|---|
\[y\] | \[1\] | \[4\] | \[1\] | \[4\] |
\[f(x) = x + 1\]
\[x\] | \[1\] | \[0\] |
---|---|---|
\[y\] | \[2\] | \[1\] |
\[3)\ При\ a = 0;\ \ a > 4.\]