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Calabunga

  • 2 years ago

Solve the system by using a table. system (1 point) (–4, –3) (–3, –4) (4, 3) (3, 4)

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  1. Calabunga
    • 2 years ago
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  2. Calabunga
    • 2 years ago
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    I need help solving for y please! :)

  3. BluFoot
    • 2 years ago
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    solve for 4x in the top equation and substitute that in to the second equation

  4. Calabunga
    • 2 years ago
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    I need to get two y=mx+ b equations, so i can graph them. i'm doing the equation wrong.

  5. BluFoot
    • 2 years ago
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    Oh sure, that's another way. Just solve for y in both equations then. In the top one, divide by 3 on both sides. In the bottom one, add 4x on both sides then divide by -4 on both sides.

  6. Calabunga
    • 2 years ago
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    Do you divide both the slope and b/y intercept by the -4 and 3?

  7. phi
    • 2 years ago
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    for the 1st equation 3y= 4x+7 divide both sides by 3 (that means all terms are divided by 3) \[ \frac{\cancel{3}y}{\cancel{3}}= \frac{4x+7}{3} \] \[ y= \frac{4}{3}x + \frac{7}{3} \]

  8. phi
    • 2 years ago
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    for the 2nd equation, first add +4x to both sides then divide both sides by -4

  9. Calabunga
    • 2 years ago
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    That's what i got, but i started pluging number in to get one of the options, nothing worked...

  10. Calabunga
    • 2 years ago
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    could you please try plugging numbers in to find one of the options at the top? or give me numbers to plug in please?

  11. phi
    • 2 years ago
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    ok, but first, what did you get for the 2nd equation?

  12. Calabunga
    • 2 years ago
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    y=-1x+7

  13. phi
    • 2 years ago
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    how did you get that?

  14. Calabunga
    • 2 years ago
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    by adding -4x to the other side, then dividing by -4; y=4x+28/-4; y=-1+7

  15. phi
    • 2 years ago
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    looks good except 28/-4 is not +7 you should get y= -1x - 7

  16. Calabunga
    • 2 years ago
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    ahhhhhhhhhhhhhhhhhhhhhhhhh.

  17. Calabunga
    • 2 years ago
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    but how do i get one of the options above? like what numbers should i put in the equations????

  18. phi
    • 2 years ago
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    you have 2 equations y= (4/3)x + 7/3 and y = -x -7 one way to find where they meet is sketch the lines to get an idea where they cross or pick some numbers for x and find y

  19. Calabunga
    • 2 years ago
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    gahhhhhhhhhhhhhhhhhhhhh, i tried that, for some reason it's not workingg:(

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