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Brandon_H

  • 2 years ago

please help and explain!

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  1. Brandon_H
    • 2 years ago
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  2. Brandon_H
    • 2 years ago
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    please help!

  3. BradNasty
    • 2 years ago
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    The change is 10 because everytime x increases by 2 y increases by 10 and so on.

  4. BradNasty
    • 2 years ago
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    I think xP

  5. Brandon_H
    • 2 years ago
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    k you wanna give another one a try?

  6. Brandon_H
    • 2 years ago
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    Find the rate of change for each table, equation, or graph. How did you find the rate of change?

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  7. chihiroasleaf
    • 2 years ago
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    rate of change has the same meaning as slope of a line or gradient, denoted by m slope = change in y / change in x or if we have two points (x1,y1) and (x2,y2) then the rate of change is \[m=\frac{ y _{2}-y _{1} }{ x _{2}-x _{1} }\]

  8. Brandon_H
    • 2 years ago
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    how does that help me solve the next one yo????

  9. chihiroasleaf
    • 2 years ago
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    for your first problem, consider that you have three points we can use any two points, I'll use the first two points (2,10) and (4,20) so we have x1 = 2, y1 = 10, x2=4, and y2=20 now, can you calculate the rate of change using the formula above? :)

  10. Brandon_H
    • 2 years ago
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    ok hold on let me solve it

  11. Brandon_H
    • 2 years ago
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    so it would be 5?

  12. Brandon_H
    • 2 years ago
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    right???????????????????

  13. chihiroasleaf
    • 2 years ago
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    yes... :)

  14. Brandon_H
    • 2 years ago
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    ok can you help with #2?

  15. chihiroasleaf
    • 2 years ago
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    it's similar I think..., let's make the graph looks better.. :) |dw:1354819288993:dw| can you find two points on the line?

  16. Brandon_H
    • 2 years ago
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    25 and 6????

  17. Brandon_H
    • 2 years ago
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    nad 0 0

  18. Brandon_H
    • 2 years ago
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    rate of change is 25/6? right?

  19. chihiroasleaf
    • 2 years ago
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    a point in Cartesian coordinates is stated as (x,y) , the horizontal line is x-axis and the vertical line is y-axis, so the first point is (6,25) and the second one is (0,0) Now, what is the rate of change of the line? (use the previous formula)

  20. chihiroasleaf
    • 2 years ago
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    correct... :)

  21. Brandon_H
    • 2 years ago
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    cool! can you help with more??

  22. Brandon_H
    • 2 years ago
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    Write an equation in slope-intercept form, point-slope, or standard form for the line with the given information. Explain why you chose the form you used. a. Passes through (-1, 4) and (-5, 2) We will just start with A lol

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