


\[\boxed{\text{305.}\text{\ }еуроки - ответы\ на\ пятёрку}\]
Пояснение.

Решение.
\[\textbf{а)}\ y = 1,7x\]
| \[x\] | \[0\] | \[2\] |
|---|---|---|
| \[y\] | \[0\] | \[2,4\] |

\[\textbf{б)}\ y = - 3,1x\]
| \[x\] | \[0\] | \[1\] |
|---|---|---|
| \[y\] | \[0\] | \[- 3,1\] |

\[\textbf{в)}\ y = 0,9x\]
| \[x\] | \[0\] | \[1\] |
|---|---|---|
| \[y\] | \[0\] | \[0,9\] |

\[\textbf{г)}\ y = - 2,3x\]
| \[x\] | \[0\] | \[1\] |
|---|---|---|
| \[y\] | \[0\] | \[- 2,3\] |

\[\textbf{д)}\ y = kx;\ \ k > 0\]

\[\textbf{е)}\ y = kx;\ \ k < 0\]

\[В\ заданиях\ д)\ и\ е)\ график\ \]
\[функции\ y = kx\ имеет\ вид\ \]
\[y = x;\ \ y = - x.\]

\[\boxed{\text{305\ (305).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
Пояснение.

Решение.
\[\textbf{а)}\ y = 1,7x\]
| \[x\] | \[0\] | \[2\] |
|---|---|---|
| \[y\] | \[0\] | \[3,4\] |

\[\textbf{б)}\ y = - 3,1x\]
| \[x\] | \[0\] | \[1\] |
|---|---|---|
| \[y\] | \[0\] | \[- 3,1\] |

\[\textbf{в)}\ y = 0,9x\]
| \[x\] | \[0\] | \[1\] |
|---|---|---|
| \[y\] | \[0\] | \[0,9\] |

\[\textbf{г)}\ y = - 2,3x\]
| \[x\] | \[0\] | \[1\] |
|---|---|---|
| \[y\] | \[0\] | \[- 2,3\] |

\[\textbf{д)}\ y = kx;\ \ \ k > 0\]

\[\textbf{е)}\ y = kx;\ \ k < 0\]

\[В\ заданиях\ д)\ и\ е)\ график\ \]
\[функции\ y = kx\ имеет\ вид\ \]
\[y = x;\ \ y = - x.\]