CPM Homework Help : INT2 Problem 7-109

Complete the square to solve $0 = x^2 + 7x + 2$ . Then sketch a graph of the function $y = x^2 + 7x + 2$ . State the vertex and $y$ -intercept of the parabola. Does the vertex represent a minimum or a maximum?

Hint:

$\color{orange}{x}$	$x^2$	$-3.5x$	$\boldsymbol{= -2}$
$\color{orange}{-3.5}$	$-3.5x$		$\boldsymbol{= -2}$
	$\color{orange}{x}$	$\color{orange}{-3.5}$

The solution to the original equation gives the $x$ -intercepts of the corresponding parabola.