1 |
2 |
1 |
2 |
1 |
2 |
7 |
2 |
∴把它的图象向右平移1个单位,向下平移3个单位得到的函数的解析式为:y=
1 |
2 |
7 |
2 |
1 |
2 |
13 |
2 |
1 |
2 |
3 |
2 |
(2)因为图象绕它的顶点旋转180°后,其对称轴与顶点坐标均不变,只是图象开口向下,
所以所得图象的函数解析式为y=-
1 |
2 |
7 |
2 |
1 |
2 |
(3)∵y=
1 |
2 |
1 |
2 |
7 |
2 |
∴顶点为(3,
7 |
2 |
∵图象翻折后开口向下,
∴所求解析式为y=-
1 |
2 |
7 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
7 |
2 |
1 |
2 |
7 |
2 |
1 |
2 |
13 |
2 |
1 |
2 |
3 |
2 |
1 |
2 |
7 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
7 |
2 |
7 |
2 |
1 |
2 |
7 |
2 |
1 |
2 |