anonymous
  • anonymous
The coordinate grid shows points A through K. Which points are solutions to the system of inequalities listed below? 2x + y ≤ 10 2x − 4y < 8 A, C, D, K E, F, G, J A, C, D, H, K E, F, G, H, J
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
@DALLINATOR720
anonymous
  • anonymous
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anonymous
  • anonymous
2x + y ≤ 10 y ≤ - 2x + 10 → you can see the line in red As the sign is ≤, you keep only the part below the red line, included the red line 2x - 4y < 8 - 4y < - 2x + 8 y > (- 2x + 8)/- 4 y > - (1/2)x - 2 → you can see the line in blue As the sign is >, you keep only the part above the blue line https://s.yimg.com/hd/answers/i/da2b72a3e57e49bf9a2e5290f4d45599_A.png?a=answers&mr=0&x=1450285522&s=6da5499d53a6eb01f57582c65e38f39d So the answer is ACDK

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anonymous
  • anonymous
thx can u help with a few more
anonymous
  • anonymous
Yeah but im not the best im pretty sure I can
anonymous
  • anonymous
Which of the following points lie in the solution set to the following system of inequalities? y ≤ x − 5 y ≥ −x − 4 (−5, 2) (5, −2) (−5, −2) (5, 2)
anonymous
  • anonymous
i think its the first one
anonymous
  • anonymous
wait no its not
anonymous
  • anonymous
-(x+4) ≤ y ≤ (x-5) (I assume this is what you meant) I'll do the first one. Plug in (x=-5,y=2) -(-5+4) ≤ 2 ≤ (-5-5) 1 ≤ 2 ≤ -10 1 is less than or equal to 2, but 2 is not less than or equal to -10. So (-5,2) is not a solution. Do the other points the same way.
anonymous
  • anonymous
Or you can graph the two inequalities on a coordinate plane. Each inequality requires shading on one side of the line. Once you have the shading in place, you graph the four points. The points which are in the region shaded by both of the inequalities are solutions.
anonymous
  • anonymous
nice copying and pasting
anonymous
  • anonymous
lol

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