Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
验证 y = 3x + 2 和 是否垂直。（答：是。）
验证 y = 3x + 2 和 是否垂直。（答：是。）
Natural Language
Math Input
Extended Keyboard
