题型:解答题 题类:常考题 难易度:普通
x | ﹣1 | ﹣0.5 | 0 | 0.5 | 1 |
x2﹣3x+1 | 5 | 2.75 | 1 | ﹣0.25 | ﹣1 |
x | 0 | 0.5 | 1 | 1.5 | 2 |
ax2+bx+c | ﹣15 | ﹣8.75 | ﹣2 | 5.25 | 13 |
x | 6.17 | 6.18 | 6.19 | 6.20 |
y=ax2+bx+c | ﹣0.03 | ﹣0.01 | 0.02 | 0.04 |
试题篮