内插法计算表格已知X-10%-9%-8%-7%-6%-5%-4%-3%-2%-1%0%已知Y1818.218.418.618.81919.219.419.619.820已知X10%9%8%7%6%5%4%3%2%1%0%已知Y1616.416.817.217.61818.418.819.219.620①③③②
++--控制价①
②8483109③投标价8475184609548448611平均价少于控制价基准价4158846283984628392215534498投标报价偏差0.19032%-0.0222699%-0.1681193%表格
已知x值，求y值。求解x0.1904%-0.1681%-0.1681%-0.0223%y19.9220.0719.9720.00+-±
