鴨的質(zhì)量/千克 |
0.5 |
1 |
1.5 |
2 |
2.5 |
3 |
3.5 |
烤制時(shí)間/分鐘 |
40 |
60 |
80 |
100 |
120 |
140 |
160 |
設(shè)鴨的質(zhì)量為x千克,烤制時(shí)間為t,估計(jì)當(dāng)x=2.2千克時(shí),t的值為.
數(shù)量x(kg) |
1 |
2 |
3 |
4 |
5 |
售價(jià)y(元) |
2+0.1 |
4+0.2 |
6+0.3 |
8+0.4 |
10+0.5 |