抛物线y=-2（x+l）2-3经过平移得到y=-2x2，平移的方法是( )

题干

抛物线y=-2（x+l）²-3经过平移得到y=-2x²，平移的方法是( )

A：向左平移1个单位，再向下平移3个单位

B：向右平移1个单位，再向下平移3个单位

C：向左平移1个单位，再向上平移3个单位

D：向右平移1个单位，再向上平移3个单位

上一题下一题 0.0难度选择题更新时间:2016-04-25 05:07:36

D

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Happy Time Park

Location	west of the city
Getting there	No.16 bus
Opening hours	8:30-16:00 on weekdays,8:00-18:00 on Saturday and Sunday
Attractions	Plant Garden: thousands of kinds of plants to see Sports Center: ball games, rock climbing, swimming and many other fun games to enjoy
Facilities	parking places, public toilets, public telephones, barbecue places, medical care station and shopping centre at your service