How do you write #y=-2x^2-2x-7# in vertex form?
1 Answer
Jul 14, 2017
Explanation:
#=-2(x^2+x)-7#
#=-2(x^2+2xx1/2xx x+(1/2)^2-1/4)-7#
#=-2(x+1/2)^2+1/2-7#
#=-2(x+1/2)^2-13/2#
or
or
graph{-2x^2-2x-7 [-5.457, 4.543, -8.34, -3.34]}
