题目已知抛物线y=(m+1)x2+(m+2)xy=\left(m+1\right)x^{2}+\left(m+2\right)xy=(m+1)x2+(m+2)x有最高点,则mmm的取值范围是（ ）A.m>−1m \gt -1m>−1B.m<−1m \lt -1m<−1C.m>−2m \gt -2m>−2D.m<−2m \lt -2m<−2知识点：正比例函数的图象章节：未标注
