## ilovenyc 2 years ago Which of the following is not a way to represent the solution of the inequality 2(x + 1) greater than or equal to 20? A) x __>__ 9 B) 9_<__ x C) A number line with a closed circle on 9 and shading to the left. D ) A number line with a closed circle on 9 and shading to the right.

1. jennychan12

first solve then graph

2. ilovenyc

@jennychan12 my answer is D am i correct

3. jennychan12

no actually it's c D is the CORRECT ANSWER the question asks for which isn't a way to represent this a and b are the same thing D is correct so it's c that would be x less than or equal to 9

4. ilovenyc

@jennychan12 oh so if it was just asking what is the correct answer it would be D but since it is asking which isn't then thats what makes C? right

5. jennychan12

yep u got it :)

6. ilovenyc

@jennychan12 great thanks could you help me with another one?

7. jennychan12

sure. but can u try it first? o.O

8. ilovenyc

@jennychan12 Choose the missing step in the given solution to the inequality -2x - 14 > -4 + 3x. -2x - 14 > -4 + 3x -5x - 14 > -4 x < -2 A -5x < 10 B -5x > -28 C x < 2 D -5x > 10

9. jennychan12

what do you think it is?

10. ilovenyc

@jennychan12 i say B

11. jennychan12

lemme check it's D. how'd u get B?

12. ilovenyc

@jennychan12 at first i had A then i thought about D which seemed like a good choice however i thought it could be B so i was stuck on and B and D

13. jennychan12

can u show ur work? u don't have to mention me by the way. i'm here.

14. jennychan12

|dw:1357173667698:dw|

15. ilovenyc

oh okay. i understand it now

16. ilovenyc

Choose the last step in the given solution to the inequality 3x - 12 < 5x + 8. 3x - 12 < 5x + 8 -2x - 12 < 8 -2x < 20 A x > -10 B x > 10 C x < -10 D x < 10

17. ilovenyc

@Brittni0605 Choose the last step in the given solution to the inequality 3x - 12 < 5x + 8. 3x - 12 < 5x + 8 -2x - 12 < 8 -2x < 20 A x > -10 B x > 10 C x < -10 D x < 10

18. ilovenyc

19. jennychan12

YAY!! :D |dw:1357174499328:dw|

20. ilovenyc

@jennychan12 Which of the following is not a way to represent the solution of the inequality 8x - (5x + 4) greater than or equal to -31? A x greater than or equal to -9 B -9 less than or greater to x C A number line with a closed circle on -9 and shading to the left. D A number line with a closed circle on -9 and shading to the right.

21. jennychan12

solve then graph 8x-5x-4 ≥ -31 3x ≥ -27 (you flip the symbol only if the negative is attached to the variable) x ≥ -9 it should be c.

22. ilovenyc

@jennychan12 so the answer is C) a number line with a closed circle on -9 and shading to the left?

23. jennychan12

yes because it's supposed to be shade to right.

24. ilovenyc

@jennychan12 okay thanks

25. ilovenyc

@jennychan12 Choose the correct description of the graph of the compound inequality. x - 1 less than or greater to 12 or 2x greater than or equal to 30 A) A number line with an open circle on 13, shading to the left, and an open circle on 15, shading to the right. B) A number line with a closed circle on 13, shading to the left, and a closed circle on 15, shading to the right. C) A number line with an open circle on 13, an open circle on 15, and shading in between. D) A number line with a closed circle on 13, a closed circle on 15, and shading in between.