Quadratic Inequalities (HSC SSCE Mathematics Advanced): Quizzes

A quadratic function to a constant/function

$a \neq 0$

Find boundary points by solving equation

$\Delta = b^2 - 4ac$

Two distinct boundary points

$\leq$ or $\geq$

Above the line

A range or ranges of x-values

$x = 5$ or $x = -1$

To check which intervals satisfy inequality