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Phebe

  • one year ago

HELPZZZ PLZZ!!!!! http://prntscr.com/7razdj

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  1. Phebe
    • one year ago
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    @Hero

  2. Hero
    • one year ago
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    @Phebe, what are your thoughts regarding this problem?

  3. Hero
    • one year ago
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    Do you know what a rate of change is?

  4. Phebe
    • one year ago
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    Yes i do

  5. Phebe
    • one year ago
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    i think i know the answer for part A

  6. Hero
    • one year ago
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    What do you think the answer is for A? Please show your work as well.

  7. Phebe
    • one year ago
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    Well for A its following a pattern which is x*5=y

  8. Hero
    • one year ago
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    So what does that mean in terms of finding the rate of change?

  9. Phebe
    • one year ago
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    i thought that was the answer

  10. Hero
    • one year ago
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    I was looking more for something like: The rate of change is _________ because ___________.

  11. Phebe
    • one year ago
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    ok so The rate of change is x*5=y becausethats the pattern its going by?

  12. Hero
    • one year ago
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    You should probably go back to your notes and make sure you understand exactly what rate of change is. You're on the right track, however, what you have isn't exactly correct as stated.

  13. Phebe
    • one year ago
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    I do know what the rte of change is its A rate of change is a rate that describes how one quantity changes in relation to another quantity

  14. Hero
    • one year ago
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    Okay, so in this case, you figured out that y = 5x, which is a great start. It shows that the relationship between x and y is linear. The next step would have been to divide both sides by x. Then you would have y/x = 5, since 5 is the slope. In this case the slope of a line is the rate of change.

  15. Phebe
    • one year ago
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    so 5 is the slope?

  16. Hero
    • one year ago
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    Basically, when you have a linear equation of the form y = mx + b, the "m", the slope of the line is the rate of change. The terms "slope" and "rate of change" are synonymous as they apply to linear relationships.

  17. Phebe
    • one year ago
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    So i was right?

  18. Phebe
    • one year ago
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    @Hero

  19. Hero
    • one year ago
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    Basically, another way to approach answering the question is to use the slope formula. We can take any two points \((x_1, y_1)\), \((x_2, y_2)\) from a line of the form y = mx + b, and apply it to the slope formula: \(m = \dfrac{y_2 - y_1}{x_2 - x_1}\) which will give us the rate of change, \(m\).

  20. Phebe
    • one year ago
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    okay so hold on let me do that

  21. Phebe
    • one year ago
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    so y1 would be 10 and y2 would be 20 from the graph they have right?

  22. Hero
    • one year ago
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    Yes, you can let \(y_1 = 10\) and \(y_2 = 20\) for this calculation.

  23. Phebe
    • one year ago
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    |dw:1436586160912:dw| THERE!?!?!?!?! LOL

  24. Hero
    • one year ago
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    Looks great so far. What value do you get for m?

  25. Phebe
    • one year ago
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    so the value i got 10/2

  26. Hero
    • one year ago
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    The rate of change is best expressed in the simplest possible form. The fraction 10/2 is reduceable.

  27. Phebe
    • one year ago
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    so i devide it by 2 right so 5/1?

  28. Hero
    • one year ago
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    Yes, the rate of change for the given table is 5/1 or just 5.

  29. Phebe
    • one year ago
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    OMG SO 5 is the answer right?

  30. Hero
    • one year ago
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    Yes, but the correct answer is best expressed clearly, completely, and correctly and in sentence form. So if you said: "The rate of change for the quantities given in the table for part a is 5.", then that would be a great way to express your answer.

  31. Phebe
    • one year ago
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    this is what i put: PART A: rate of change is 5 because, i used the formula m=y2-y-/x2-x1

  32. anonymous
    • one year ago
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    rate of change is more or less the slope

  33. anonymous
    • one year ago
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    Its nothing fancy, just find the slope of every single one of them

  34. anonymous
    • one year ago
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    btw i have the exact same textbook lol

  35. Phebe
    • one year ago
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    LOL foreal?

  36. anonymous
    • one year ago
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    yea lol i missed the part where hero said about slope whoops sorry to interrupt

  37. Phebe
    • one year ago
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    lol its okay n are you homeschooled? nvm ill pm you cuz hero trying to help me

  38. Hero
    • one year ago
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    I guess the point is to avoid saying things like "the answer is 5" and to try to be explanatory with the answers you give. The actual answer you give can be described in a more explanatory manner if you properly express everything that you did. You could start with your pattern for example, and then introduce the idea that for linear equations, the slope of the line represents the rate of change for quantities x and y and then end by stating the obvious: "The rate of change is 5". My recommendation to you is to try journaling as you study Algebra or any mathematics. If you take a journalistic approach, it will help you to become more descriptive with your answers and it may help you to develop a more intuitive thinking process. Nothing fancy.

  39. Phebe
    • one year ago
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    Yea im like a journalist but only in english class lol Thanks for everything!!!! @Hero

  40. Hero
    • one year ago
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    yw

  41. Phebe
    • one year ago
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    :D !!!!!!!!!!!!!!!!!!

  42. Phebe
    • one year ago
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    @Hero can you help me with part B

  43. Phebe
    • one year ago
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    isnt it like the same as part A?

  44. Hero
    • one year ago
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    Actually, I have to go. There are plenty other users available to help hopefully. Good night and good luck.

  45. Phebe
    • one year ago
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    WELL GOODNIGHT!!! LOL

  46. Phebe
    • one year ago
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    @whatdoesthismean Help me then lol if you want

  47. anonymous
    • one year ago
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    Uh sure

  48. anonymous
    • one year ago
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    So basically just like find the slopes like we said

  49. Phebe
    • one year ago
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    thanks!!

  50. anonymous
    • one year ago
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    B is very easy to find the slopes

  51. Phebe
    • one year ago
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    so for B do i just solve tyhe equation?

  52. anonymous
    • one year ago
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    Use the for y=mx+b

  53. anonymous
    • one year ago
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    formula* |dw:1436587663311:dw|

  54. Phebe
    • one year ago
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    isnt that the answer? lol

  55. anonymous
    • one year ago
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    well yeah, but you never answered so i thought i might as well work it out.

  56. anonymous
    • one year ago
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    And btw its not the answer, its the equation

  57. Phebe
    • one year ago
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    WELL THANK YOU!!!!!!

  58. anonymous
    • one year ago
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    y=mx+b where m is the slope. SO what would m be

  59. Phebe
    • one year ago
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    i solve the equation to get B right?

  60. anonymous
    • one year ago
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    no non nononononono

  61. Phebe
    • one year ago
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    LOLZZ!!!

  62. anonymous
    • one year ago
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    you're trying to find slope. the equation is in the form y = mx+b where M is the SLOPE SO in this case what would m be????

  63. anonymous
    • one year ago
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    hello????

  64. Phebe
    • one year ago
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    I'm here lol

  65. Phebe
    • one year ago
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    Would it be a fraction?

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