$$y=-1-3x$$  

$$y=-5x+1$$  

$$y=5-\frac{1}{2}x$$  

$$y=-\sqrt{7}+\sqrt{2}x$$  

$$\left(\frac{1}{2};0\right)$$  

$$\left(\frac{1}{2};1\right)$$  

$$\left(2;-4\right)$$  

$$\left(-1;-1\right)$$  

$$y=7x-1$$  

$$y=1-7x$$  

$$y=7x+9$$  

$$y=-\frac{1}{7}x-1$$  

$$a>0$$  

$$a=0$$  

$$a<0$$  

$$a>1$$  

$$a=2,\ b=-1$$  

$$a=1,\ b=2$$  

$$a=-1,\ b=2$$  

$$a=2,\ b=1$$  

1

2

-1

-2

$$y=1-3x$$  

$$y=5x-1$$  

$$y=\frac{1}{2}x-5$$  

$$y=-\sqrt{7}+\sqrt{2}x$$  

$$y=-1-3x$$  

$$y=-5x+1$$  

$$y=5-\frac{1}{2}x$$  

$$y=-\sqrt{7}+\sqrt{2}x$$  

$$m>\frac{1}{2}$$  

$$m<\frac{1}{2}$$  

$$m<-\frac{1}{2}$$  

$$m>-\frac{1}{2}$$  

m=5

m=-5

m khác 5

m khác -5

$$y=\frac{1}{\sqrt{2}}x-1$$ và $$y=\sqrt{2}x+3$$

$$y=\frac{1}{\sqrt{2}}x$$ và $$\frac{\sqrt{2}}{2}x-1$$

$$y=-\frac{1}{\sqrt{2}}x+1$$ và $$y=-\left(\frac{\sqrt{2}}{2}x-1\right)$$

$$y=\sqrt{2}x-1$$ và $$y=\sqrt{2}x+7$$

(0; -3)

(1; -4)

(2; 1)

(3; 0)

y = 2x - 2

y = -2x + 1

y = 3 - √2 (√2x + 1)

y = 1 - 2x