$\"\"$

The function is $\"\"$ .

The x-intercepts of the graph of f are the real solutions of the equation f (x) = 0

that are in the the domain of f.

$\"\"$

$\"\"$ [Multiply each side by (x + 4)] $\"\"$

$\"\"$ (Simplify)

$\"\"$ (Take square root each side)

$\"\"$ (Substitute $\"\"$ )

$\"\"$ (Simplify)

$\"\"$

The x-intercepts are $\"\"$ .

Since $\"\"$ .

The points $\"\"$ is on the graph of f. $\"\"$

The x-intercepts are $\"\"$ .

The points $\"\"$ is on the graph of f.