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YanaSidlinskiy

  • one year ago

Answers that need to be checked! 1.) Determine whether each ordered pair is a solution of the system of linear equations. 3y=9x+12 3x-y=-4 a. (-2,-2) b. (0,4) MY ANSWER: I PUT YES

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  1. YanaSidlinskiy
    • one year ago
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    2.) Solve the system of equations by graphing. x-y=4 y=-1 MY ANSWER: (1,-3) (0,-4)

  2. YanaSidlinskiy
    • one year ago
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    Lines intersect @ (1, -3)

  3. Nnesha
    • one year ago
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    yep that's right but why did you put 0 , -4 for 2nd question ?

  4. YanaSidlinskiy
    • one year ago
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    3.) Solve the system of equations by graphing. y=-4x+2 3y+12x=6 Lines intersect @ (1, -2)

  5. YanaSidlinskiy
    • one year ago
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    I have to find 2 points to plot it on the graph.

  6. YanaSidlinskiy
    • one year ago
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    Solve the system of equations by substitution. x=7y+6 -2x+14y=-12 I got infinitely many solutions.

  7. Nnesha
    • one year ago
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    last one when you solve 2nd equation for y you will get 1st equation so i would write infinitely many solution

  8. Lurker
    • one year ago
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    1)b 2) wrong 3)right 4)right

  9. Nnesha
    • one year ago
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    i mean 3rd question

  10. YanaSidlinskiy
    • one year ago
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    I'm confused....

  11. YanaSidlinskiy
    • one year ago
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    What do you mean?

  12. YanaSidlinskiy
    • one year ago
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    Are you saying I solved for number 3 wrong then?

  13. Nnesha
    • one year ago
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    what's the statement for 3rd question ? they are asking 4 solution ?

  14. YanaSidlinskiy
    • one year ago
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    For number 3, they are asking my to solve by graphing. Y HAS ALREADY been solved for.. Now I need to solve for the other equation. When solving for the other equation and plotting it on the graph, lines intersect at points (1, -2). Is the intersection point correct?

  15. Nnesha
    • one year ago
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    \(\color{blue}{\text{Originally Posted by}}\) @YanaSidlinskiy 3.) Solve the system of equations by graphing. y=-4x+2 3y+12x=6 Lines intersect @ (1, -2) \(\color{blue}{\text{End of Quote}}\) for this one you will get same line both equations are same so thats mean they are intersecting at every point

  16. Nnesha
    • one year ago
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    solve 2nd equation for y \[\huge\rm 3y+12x=6\] subtract 12x both sides and then divide by 3

  17. Nnesha
    • one year ago
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    its called dependent system when 2 equations represent the same line (same slope ,same y-intercept )

  18. YanaSidlinskiy
    • one year ago
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    This topic is on solving by the graphing method....

  19. Nnesha
    • one year ago
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    okay so when you graph both equation you will get same line there isn't ONE point where they intersect so answer would be infinitely many solution

  20. Nnesha
    • one year ago
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    1) right 2nd) you just need a point where both lines intersect ,not the y-intercept 4th) right

  21. Nnesha
    • one year ago
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    let me know if u r still confused :=)

  22. YanaSidlinskiy
    • one year ago
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    Thanks! Glad you could help out a little!

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