illustrate quadratic inequality

It is an expression in the form  $ax^2+bx+c>0,\$  or any from the symbols  $<,\le,\ge,\ or\ne,$ where the solution of x hold inequality.

• Linear Equation

• Linear Inequality

• Quadratic Equation

• Quadratic Inequality

Which of the following is an example of quadratic inequality?

•  $x^2-6x+2\ =0$  

•  $2x^3-4x-9\ <0$  

•  $4x^3+3x\ +2\ =\ 0$  

•  $4x^2-5x\ +\ 8\ge0$  

Which of the following symbols read as greater than?

• $>$

• $<$

• $\ge$

• $\le$

Which of the following symbolizes less than?

• $>$

• $<$

• $\le$

• $\ge$

Which symbol is used for the statement 18 and above?

• $>$

• $<$

• $\le$

• $\ge$

Which of the following is the right symbol in the statement at most 20?

• $>$

• $<$

• $\le$

• $\ge$

TRUE OR FALSE: Once you change the equal sign in the definition of a quadratic equation to an inequality, the quadratic equation becomes quadratic inequality.

• True

• False

TRUE OR FALSE:

• The square of any number is always equal to a positive number.

• True

• false

TRUE OF FALSE: Quadratic inequality can not be express into a factor form like  $\left(x-3\right)\left(x+9\right)\ \ge0$  .

• True

• False

In a number line, what does it represent?

• Greater than -2 but less than 6

• greater than 6 but less than -2

• Greater or equal to -2 but less that or equal to 6

• Greater or equal to 6 but less than or equal to -2