Question

Помогите плиз !...............

Answer 1

Ответ:

Объяснение:

1)3y≤5-4x⇒$y\leq \frac{5-4x}{3} y\leq -\frac{4x}{3}+ \frac{5}{3}$

2) 3y>-2x²+3x+1⇒

$y>-\frac{2x^{2} }{3}+x+\frac{1}{3}\\y>-\frac{2}{3} (x^{2} -\frac{3x}{2}-\frac{1}{2}) \\ y>-\frac{2}{3}(x^{2} -\frac{6x}{4}+\frac{9}{16} -\frac{9}{16} -\frac{1}{2})\\y>-\frac{2}{3}(x-\frac{3}{4} )^{2} +\frac{17}{24}$

3) x²-3x-3>2y⇒

$y<\frac{1}{2} (x^{2} -3x-3) \\ y<\frac{1}{2}(x^{2} -\frac{6x}{2} +\frac{9}{4} -\frac{9}{4} -3)$

$y<\frac{1}{2} (x-\frac{3}{2}) ^{2} -\frac{21}{8}$

4) 0.5x²+y-2x<1

$y<-0.5x^{2} +2x+1\\y<-0.5(x^{2} -4x-2)\\y<-0.5(x^{2} -4x+4-4-2)\\y<-0.5(x-2)^{2} +3$