SOLUTION: 4y=2(x+1)^2-1 tell me the y intercept and give me a table of values please

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Question 381513: 4y=2(x+1)^2-1
tell me the y intercept and give me a table of values please

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi
4y=2(x+1)^2-1
y = (1/2)(x+1)^2 - 1/4
the vertex form of a parabola, y=a%28x-h%29%5E2+%2Bk where(h,k) is the vertex
Pt(-1,-1/4) is the vertex
y-intercept, when x = 0
y = (1/2)*1 - 1/4
y = (1/2) Pt(0,1/4) the y intercept
x-intercept, when y = 0
0 = (1/2)(x+1)^2 - 1/4
1/4 = (1/2)(x+1)^2
2/4 = x^2 + 2x + 1
0 = x^2 + 2x + 1/2
x+=+%28-b+%2B-+sqrt%28+b%5E2-4%2Aa%2Ac+%29%29%2F%282%2Aa%29+
x+=+%28-2+%2B-+sqrt%282%29%29%2F%282%29+