2. 外语
  3. For the parabola y = x2 -4x-12 in the xy-plane, find the following. (a)The x- intercepts (b)The y-intercept (c)Coordinates of th

For the parabola y = x2 -4x-12 in the xy-plane, find the following. (a)The x- intercepts (b)The y-intercept (c)Coordinates of th

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问题 For the parabola y = x2 -4x-12 in the xy-plane, find the following.
(a)The x- intercepts
(b)The y-intercept
(c)Coordinates of the vertex
选项
答案(a)x = -2 and x = 6 (b)y = -12 (c)(2, -16)
解析
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