Maths Quiz2

Quadratic inequality

Not quadratic inequality

Quadratic inequality

Not quadratic inequality

$$x\ <\ -1$$  

$$x>-1$$  

$$x\le-1$$  

$$x\ge-1$$  

$$x<-1\ or\ x>\frac{3}{5}$$  

$$-1<x<\frac{3}{5}$$  

-1

0

1

2

-1

0

1

2

 $\left(-1,4\right)$  

 $\left(-\infty,-1\right)\cup\left(4,\infty\right)$  

 $\left(-\infty,0\right)\cup\left(0,\infty\right)$  

 $\left(-\infty,-1\right]\cup\left[4,\infty\right)$  

 $\left(-\infty,-2\right)\cup\left(1,\infty\right)$  

 $\left(-\infty,-2\right]\cup\left[1,\infty\right)$  

 $\left(-2,1\right)$  

 $\left[-2,1\right]$  

 $\left(-\infty,-2\right)\cup\left(1,\infty\right)$  

 $\left(-\infty,-2\right]\cup\left[1,\infty\right)$  

 $\left(-2,1\right)$  

 $\left[-2,1\right]$