题型:单选题 题类:常考题 难易度:普通
x | 4 | 5 | 6 | 7 |
ax2+bx+c | ﹣16 | ﹣6 | 10 | 19 |
x | 3.3 | 3.4 | 3.5 | 3.6 |
y | ﹣0.06 | ﹣0.02 | 0.03 | 0.09 |
x | 6.17 | 6.18 | 6.19 | 6.20 |
ax2+bx+c=0 | ﹣0.03 | ﹣0.01 | 0.02 | 0.06 |
x | 1.5 | 2 | 2.5 | 3 | 3.5 |
x2-2x-2 | -2.75 | -2 | -0.75 | 1 | 3.25 |
试题篮