## AcidRa1n 3 years ago How to graph x is less than or equal to 0. And the inequality shading thing.

1. DoubleCook

There would be a straight line of x=0, not dotted since it's inclusive...and shade the whole graph under that line...so quadrants 2 and 3 would be shaded in with a solid line at x=0

2. AcidRa1n

I get y > 2x + 1.. but how do you do it like when theres no slope .... like that...

3. AcidRa1n

ohhh I though 0 had to be on one side I guess it can be on the line too!

4. DoubleCook

Same thing :] Just graph whatever the graph would look like. In this case, the line would have no slope, or just be a vertical line at x=0. Then you shade the appropriate regions depending on whether it's greater than or less than

5. DoubleCook

Yup! :D I think you got it!

6. AcidRa1n

thanks

7. AcidRa1n

@DoubleCook one sec how do you know whether to shade the top or bottom part?

8. DoubleCook

You can plug in different values into your variable and check to see if it satisfies your inequality. If it does, then that "side" of the graph/line is usually shaded, but if not, try another value on the other side.

9. AcidRa1n

I DONT GET IT I flutterING HATE MATH

10. DoubleCook

Ok, so first you want to graph the equation as if the inquality weren't there and it was just an equal sign. In this case, x=0. Then with the "greater than/less than" requirements, you plug in random x values on different sides of the line. So...you could try x=-1 and x=1. With the original inequality of x<0, see if it's true when you plug in the two values for x

11. DoubleCook

If it's true, shade it in, but if not, then don't

12. AcidRa1n

@dpaInc

13. AcidRa1n

@saifoo.khan

14. AcidRa1n

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15. AcidRa1n

Dude help me out

16. AcidRa1n

I get how its horizontal on the x line but how do you know where to shade

17. AcidRa1n

can you you show me instead of writing

18. saifoo.khan

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19. AcidRa1n

NUMBER LINES?!?! WTF?!?!

20. AcidRa1n

lmao

21. AcidRa1n

do you have skype or something

22. DoubleCook

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23. DoubleCook

Because every value of x less than zero is on that side