11.已知一次函数y=ax+b(a,b是常数),x与y的部分对应值如下表:
那么代数式5a+b的值为-8.
0 309336 309344 309350 309354 309360 309362 309366 309372 309374 309380 309386 309390 309392 309396 309402 309404 309410 309414 309416 309420 309422 309426 309428 309430 309431 309432 309434 309435 309436 309438 309440 309444 309446 309450 309452 309456 309462 309464 309470 309474 309476 309480 309486 309492 309494 309500 309504 309506 309512 309516 309522 309530 366461
| x | -2 | -1 | 0 | 1 | 2 | 3 |
| y | 6 | 4 | 2 | 0 | -2 | -4 |