Arthur D. answered 11/29/15
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y=a(x-h)2+k is the equation of a parabola where (h,k) is the vertex
y=-2(x+2)2+2
vertex=(-2,2)
let x=0
y=-2(0+2)2+2
y=-2(2)2+2
y=-2(4)+2
y=-8+2
y=-6 for the y-intercept