Question 46277
{{{y = x^2 - 4}}}
vertex(-b/2a,f(x))
v(0,-4)
y-intercept:
{{{y = 0^2 - 4 = -4}}}
(0,-4)
x-intercept:
{{{0 = x^2 - 4}}}
{{{4 = x^2}}}
+-{{{2 = x}}}
(-2,0) and (2,0)
{{{graph(600,600,-10,10,-10,10,x^2-4)}}}