⑴
|
⑵
⑶
x/cm |
0 |
1 |
2 |
3 |
3.5 |
y1/cm |
2 |
3 |
3.8 |
4.4 |
4 |
y2/cm |
3.5 |
3.3 |
2.8 |
1.7 |
0 |