Question

РЕШИТЕ ПОЖАЛУЙСТА СРОЧНО ДАЮ 55 БАЛЛОВ

Answer 1

1) y=-1

2) y=kx+b

$\left \{ {{3=2k+b} \atop {5=-2k+b}} \right. \\8=2b\\b=4\\3=2k+4\\-2k=1\\k=-0,5$

y=-0,5x+4

3) y=1

4) y=kx+b

$\left \{ {{1=2k+b} \atop {0=4k+b}} \right. \\\left \{ {{-2=-4k+-2b} \atop {0=4k+b}} \right. \\-2=-b\\b=2\\0=4k+2\\4k=-2\\k=-0,5$

y=-0,5x+2

5) x=-3

6) y=kx+b

$\left \{ {{0=2k+b} \atop {1=4k+b}} \right. \\\left \{ {{0=-4k-2b} \atop {1=4k+b}} \right.\\-b=1\\b=-1\\0=2k-1\\2k=1\\k=0,5$

y=0,5x-1

7) y=kx+b

$\left \{ {{2=-1k+b} \atop {0=1k+b}} \right. \\2b=2\\b=1\\0=1k+1\\k=-1$

y=-1x+1

8) y=-4

9) y=kx+b

$\left \{ {{2=4k+b} \atop {3=0k+b}} \right. \\b=3\\2=4k+3\\-4k=1\\k=-0,25$

$y=-0,25x+3$