8.2. In the formula of the linear function $y=k x+b$, instead of the letters $k$ and $b$, insert the numbers from 1 to 20 (each one only once) so that 10 functions are obtained, the graphs of which pass through the same point.
Answer: for example, $y=1 x+20, y=2 x+19, \ldots, y=10 x+11$ or $y=1 x+2, y=3 x+$ $+4, \ldots, y=19 x+20$.

In the first case, the graph of each function will pass through the point $(1 ; 21)$, and in the second case - through the point $(-1 ; 1)$.

Other examples are possible.

+ the correct answer is provided and the common point of the graphs is indicated

$\pm$ the correct answer is provided, but the common point of the graphs is not indicated

- an incorrect answer is provided