$\"\"$

\

The inequality is $\"\"$ .

\

Find the intercepts.

\

Find the $\"\"$ -intercept by substituting $\"\"$ in $\"\"$ .

\

$\"\"$

\

Solve for $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$ .

\

No real $\"\"$ -intercepts.

\

Find the $\"\"$ -intercept by substituting $\"\"$ in $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$ -intercept is $\"\"$ .

\

$\"\"$

\

Find the vertex of above quadratic function $\"\"$ .

\

$\"\"$

\

Compare with $\"\"$ .

\

$\"\"$ , $\"\"$ and $\"\"$ .

\

Since $\"\"$ , then the parabola open upward.

\

$\"\"$

\

$\"\"$

\

$\"\"$ coordinate of vertex is $\"\"$ .

\

$\"\"$

\

$\"\"$

\

$\"\"$

\

\

$\"\"$

\

Vertex $\"\"$ .

\

$\"\"$

\

Graph the quadratic equation $\"\"$ .

\

Draw the coordinate plane.

\

Plot the intercepts and vertex.

\

Connect the plotted points.

\

$\"\"$

\

Observe the graph:

\

The inequality $\"\"$ does not touches the $\"\"$ -axis and the roots of the inequality are imaginary .

\

Therefore the solution of inequality is all real numbers.

\

$\"\"$

\

The solution of inequality is all real numbers.