Quadratics?

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The vertex of a parabola is at (-4,-3). If one x- intercept is -11, what is the other x- intercept?

How do you set this up in an equation?

2007-02-22 13:34:27 · 2 answers · asked by Lilaznboi2011 2 in Education & Reference ➔ Homework Help

2 answers

I'll give you a clue, but that is all...
parabolas are symmetrical, therefore, by definition, each "side" is a mirror image of the other and so is each intercept

2007-02-22 13:43:34 · answer #1 · answered by Smash 1 · 0⤊ 0⤋

the other x-intercept is 3 because the vertex is found along the axis of symmetry...so the x value in the vertex is in between the two x-intercepts of the parabola.

2007-02-22 21:46:15 · answer #2 · answered by Alex 3 · 0⤊ 0⤋