已知一次函数y=kx+2(k≠0)图象过点(3,﹣4),求不等式kx+2≤0的解集.
解:∵一次函数y=kx+2(k≠0)图象过点(3,﹣4),
∴3k+2=﹣4,解得k=﹣2,
∴一次函数解析式为y=﹣2x+2,
解不等式﹣2x+2≤0得x≥1,
即不等式kx+2≤0的解集为x≥1.
课文《范仲淹的故事》讲了几个故事?
Tourists were feasting their eyes on the ocean scenery and suddenly they spotted an Iceberg (冰山)f____at a distance.