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freemap

  • one year ago

Which ordered pairs are solutions to the inequality y – 4x ≤ –6? Choose all answers that are correct. A. (–2, –14) B. (–1, –9) C. (0, –5) D. (1, 3) E. (3, 5)

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  1. freemap
    • one year ago
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    @radar

  2. freemap
    • one year ago
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    please help me

  3. phi
    • one year ago
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    what is the first (-2,-14) ?

  4. freemap
    • one year ago
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    like plugin in -2 for x

  5. phi
    • one year ago
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    It is not labeled as a choice? or is it supposed to be choice A ?

  6. freemap
    • one year ago
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    yes,

  7. freemap
    • one year ago
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    No I mean sorry

  8. phi
    • one year ago
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    can you edit the question? otherwise it will be confusing

  9. freemap
    • one year ago
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    ok

  10. freemap
    • one year ago
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    Which ordered pairs are solutions to the inequality y – 4x ≤ –6? Choose all answers that are correct. A.(–2, –14) B.(–1, –9) C.(0, –5) D.(3, 5) E.(1,3) There all answer choices, pick all that are correct

  11. phi
    • one year ago
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    y-4x are "instructions" that says multiply the first number ( the x number in a pair) by -4 then add it to the 2nd number (the y number in a pair) can you do that for the pair (-2,-14) ?

  12. freemap
    • one year ago
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    ok, you don't have use answer choices. May i have an example

  13. phi
    • one year ago
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    for (-2,-14) multiply the first number by -4: -2*-4 then add the 2nd number: -14 can you do that ?

  14. freemap
    • one year ago
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    ok

  15. freemap
    • one year ago
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    16--14=30

  16. phi
    • one year ago
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    first do -2*-4

  17. freemap
    • one year ago
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    8

  18. phi
    • one year ago
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    now add -14

  19. freemap
    • one year ago
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    -6

  20. phi
    • one year ago
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    yes. now we have \[ y - 4x \le -6 \\ -6 \le -6\] the little _ under the \( \lt\) means equal. is -6 = -6 ? yes. so choice A works.

  21. freemap
    • one year ago
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    ok, now do the same thing for all of them

  22. phi
    • one year ago
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    now try (–1, –9) in -4x+y (this means the same as y + -4x or y-4x) and you do -4* -1 add -9

  23. freemap
    • one year ago
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    4+9=13

  24. phi
    • one year ago
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    the 2nd number in (-1,-9) is not +9. it is -9

  25. freemap
    • one year ago
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    5

  26. phi
    • one year ago
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    4+ -9 = what ?

  27. freemap
    • one year ago
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    -5

  28. phi
    • one year ago
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    when you add numbers with different signs, subtract them (ignoring the sign) and make the answer the same sign as the "bigger" number. yes we get -5

  29. phi
    • one year ago
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    now \[ -5 \le -6\] it is clearly not equal. notice the "big" end of the \( \le\) is next to -6. that means we want -6 to be bigger than the other side is -6 bigger than -5 ?

  30. freemap
    • one year ago
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    no

  31. phi
    • one year ago
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    ok, -5 is bigger than -6 and we want numbers smaller than -6 so cross off choice B. so far , only A works.

  32. freemap
    • one year ago
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    ok

  33. phi
    • one year ago
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    C. (0, –5) -4 x + y do -4 * 0 then add -5

  34. freemap
    • one year ago
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    -5

  35. phi
    • one year ago
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    and we just did \( -5 \le -6\). Not true. cross off choice C

  36. freemap
    • one year ago
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    ok

  37. phi
    • one year ago
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    can you try D. (3, 5) and show your steps.

  38. freemap
    • one year ago
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    ok

  39. freemap
    • one year ago
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    D. (3,5) -4x + y -4 * 3=-12 add 5 =-7

  40. phi
    • one year ago
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    ok, and is \(-7 \le -6\) true or false?

  41. freemap
    • one year ago
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    yes

  42. freemap
    • one year ago
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    true

  43. phi
    • one year ago
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    ok, so choice A and choice D one more to go E. (3, 5)

  44. freemap
    • one year ago
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    I thought we just did 3,5

  45. phi
    • one year ago
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    wait, E is (1,3)

  46. freemap
    • one year ago
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    E. (1,3) -4x+y -4*1=-4 add 3, -4+3=-1 -1 Is bigger than -6 so the equation is false

  47. phi
    • one year ago
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    yes. now double check your question, that choice D is (3,5) and E is (1,3) up top you have it the other way round.

  48. freemap
    • one year ago
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    It is, Thanks so much, You've been a great help. Could you check another one of my answer. I'll post again

  49. phi
    • one year ago
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    ok

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