Question

画出函数y=-3x-4的图象，并利用图像回答下列问题： （1）求当x=-2时y的值； （2）求使y=5时x的值；

（3）求方程-3x-4=0的解；
（4）求不等式-3x-4≥0的解；
（5）若y的取值范围是-1＜y≤3，求x的取值范围。

尽量给出图象，，必须有解题过程，，谢了。

Answer 1

如图。你如果看不清楚，可以者族【点击放大图片】之后，再把它【图片另存为】桌面。（似乎放大也不告搏清楚，没关系），然后预览。就十首友弊分清楚了。

Answer 2

1、2两问直接代入求解，3、4问移项、合并同类项、系没山销数化为唯闹1，注意4中不等号的方向，5问，y是单减函数，具体解法好好看看书，这是一次函数中比较简枯游单的问题

追问

简单你倒是告诉我怎么写啊，过程过程过程。

Answer 3

article complete story , three children by a bunch of garbage when faced with different description of mental activity ,ralph lauren paris, and finally draw their own conclusions : to sacrifice themselves for others services. Very profound meaning . Language fluency .

Narrative essay : a pile of garbage

class ,mbt chaussures paris, and flowers , Kobayashi and millet in the corridor that a pile of garbage. Flowers saw , I thought : This is more than the junk on the unsanitary ah. She went to her teacher. Kobayashi saw ,birkenstock paris, I thought : I should go back to class to take a broom , dustpan to go. So , he returned to class holding a broom , dustpan ready to clean up garbage. Millet holding the ball passing through here and saw the garbage , I thought : This is disgusting to push junk , who cares who love tubes go . Then he would bypass the garbage to go play ball . Kobayashi
I think the best ,christian louboutin france, because he can sacrifice himself for others services.

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追问

我让你帮我解题，你给我发个故事干嘛。

Answer 4

被鄙视了吧！哈哈

追问

你是肿么个意思。

追答

么意思