Question

Solve the equation graphically $x^2+x-6=0$.

Answer 1

Solution:

$y=x^2+x-6$

$x$	$0$	$1$	$-1$	$2$	$-2$	$3$	$-3$	$4$
$y$	$-6$	$-4$	$-6$	$0$	$-4$	$6$	$0$	$6$

From the graph,

$x=2$ or $x=-3$