Illustrations of Quadratic Equations

The equation 2x + 5 = 9 is __________.

• Quadratic

• Not Quadratic

The equation (2x - 7)² = 0 is __________.

• Quadratic

• Not Quadratic

In the equation $x^2-x-2=0$  , what is the value of a? 

In the equation $2x^2+5x-3$  , what is the value of c? 

In the equation $2x^2+5x-3=0$  , what is the value of b? 

It is a polynomial equation of degree two that can be written in the form  $ax^2\ +\ bx\ +\ c\ =\ 0$ , where a, b, and c are real numbers and a  $\ne$  0.

• Linear Equation

• Quadratic Equation

What is the standard form of a quadratic equation?

• ax² + bx + c = 0

• ax² + bx = 0

• ax² + bx = c