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liljj1421

  • one year ago

explain how to write a function rule from the table below. then write a function rule. |x|2|4|6| |y|1|0|-1|

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  1. liljj1421
    • one year ago
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    which graph represents the liner function y= 1/4*-3?

  2. anonymous
    • one year ago
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    its the 2nd graph

  3. liljj1421
    • one year ago
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    wich graph represents the linear function y=1/3*x-4

  4. anonymous
    • one year ago
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    put x =0 => y=-4

  5. anonymous
    • one year ago
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    then put y=0 => x=+12

  6. anonymous
    • one year ago
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    c

  7. liljj1421
    • one year ago
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    witch graph represents the linear function y=3*x+1

  8. liljj1421
    • one year ago
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    sorry these ones go to the question above

  9. liljj1421
    • one year ago
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    @HackberryAbby18

  10. liljj1421
    • one year ago
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    @Thesmarterone @HackberryAbby18 @grex10

  11. liljj1421
    • one year ago
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    I need help on the first and last question.

  12. liljj1421
    • one year ago
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    @Omar_Elboredy

  13. liljj1421
    • one year ago
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    please

  14. liljj1421
    • one year ago
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    @prettypink_mega

  15. liljj1421
    • one year ago
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    explain how to write a function rule from the table below. then write a function rule. |x|2|4|6| |y|1|0|-1

  16. liljj1421
    • one year ago
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    witch graph represents the linear function y=3*x+1 4 attachments 913045731201394608am7899723053.jpg 913045731201394608am7899723053.jpg 913045731201394608am13492647082.jpg 913045731201394608am13492647082.jpg 913045731201394608am15533028022.jpg 913045731201394608am15533028022.jpg 869973731201315229pm4962020422.jpg 869973731201315229pm4962020422.jpg

  17. anonymous
    • one year ago
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    I 'll write step-by-step but stay calm ! :)

  18. liljj1421
    • one year ago
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    I just need help with the bottom two

  19. anonymous
    • one year ago
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    K, you know equation of line ?

  20. liljj1421
    • one year ago
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    no

  21. anonymous
    • one year ago
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    K, dun worry , first you need to know that any line has an equation of the form : \[y = mx +c\] ; where m represents the slope of that line and c is the intercept part with the y-axis , K ? |dw:1433027916301:dw|

  22. liljj1421
    • one year ago
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    I know that part

  23. liljj1421
    • one year ago
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    you don't have to explain it if you don't want to

  24. anonymous
    • one year ago
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    So nw wat ? We find the slope "m" of this equation , to calculate slope you can pick two points from the table randomly and name them P1 and P2 , suppose we chose these two points from the given table , P1 >> (2,1) & P2(6,-1) So to calculate the slope we use this : \[slope = \frac{ y _{2} - y _{1} }{ x _{2} - x _{1} }\] Where these are the x' and y's of the picked points so for our tabel, \[slope = \frac{ -1 - 1 }{ 6 - 2 } = -\frac{ 1 }{ 2 }\] So nw we get m , subs. with this value into the equation .. \[y = -\frac{ 1 }{ 2 } x + c\] nw to get "c" what we do ? We easily subs. by any point from the two points we just picked and get the c ! so nw, \[1 = -\frac{ 1 }{ 2 } * 2 + c\] Nw what ? It's "c = 2" :D So the equation(aka function) will be : \[y = -\frac{ 1 }{ 2 } x + 2\] To be sure that this is the equation .. just dip the third point into the equation and see what happened .. It's ok ! :D Let me know if you got it :)

  25. anonymous
    • one year ago
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    For the second question could U plz upload 'em again ? :)

  26. liljj1421
    • one year ago
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    so then what is x?

  27. liljj1421
    • one year ago
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    the question is witch graph represents the linear function y=3*x+1

  28. anonymous
    • one year ago
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    Plz show me the 4 graphs U gave me only 1 ! :D

  29. anonymous
    • one year ago
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    Give me the whole question plz :) You just resend the same pic every time ! :D

  30. liljj1421
    • one year ago
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    it the 24th chat going up it wont let me

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