1.
一次函数y=kx-b的图象如图所示,则下列结论正确的是( )
| A. | k>0,b<0 | B. | k>0,b>0 | C. | k<0,b<0 | D. | k<0,b>0 |
16.下列命题中错误的是( )
0 309347 309355 309361 309365 309371 309373 309377 309383 309385 309391 309397 309401 309403 309407 309413 309415 309421 309425 309427 309431 309433 309437 309439 309441 309442 309443 309445 309446 309447 309449 309451 309455 309457 309461 309463 309467 309473 309475 309481 309485 309487 309491 309497 309503 309505 309511 309515 309517 309523 309527 309533 309541 366461
| A. | 对角线相等的四边形是矩形 | |
| B. | 两组对边分别相等的四边形是平行四边形 | |
| C. | 矩形的对角线相等 | |
| D. | 平行四边形的对边相等 |