Question 394701
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Hi
y = x^2-3 |x-intercepts when y = 0, x = ± {{{sqrt(3)}}} d between = 2{{{sqrt(3)}}}
Using the vertex form of a parabola, {{{y=a(x-h)^2 +k}}} where(h,k) is the vertex
vertex is Pt(0,-3)

{{{drawing(300,300, -6, 6, -6, 6, grid(1),
circle(1.732, 0,0.3),
circle(-1.732, 0,0.3),
circle(0, -3,0.3),
graph( 300, 300, -6, 6, -6, 6,x^2-3 ))}}}