Practice problem
Which of the following is the vertex of the parabola given by y=2x2+4x−8y = 2x^2+4x-8y=2x2+4x−8?
(2,−12)(2,-12)(2,−12)
(−2,−12)(-2,-12)(−2,−12)
(1,−10)(1,-10)(1,−10)
(−1,−10)(-1,-10)(−1,−10)
Type a concept, like “slope” or “photosynthesis”.