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anonymous

  • one year ago

Find a solution to the following system of equations. -5x + 2y =9 3x + 5y =7

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  1. campbell_st
    • one year ago
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    can you use any method... or is there a specific method

  2. anonymous
    • one year ago
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    these are the choices they gave me (–1, 2) (–9, 7) (0, 1) (1, 7)

  3. campbell_st
    • one year ago
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    ok... so a easy choice is graphically... so graph the lines and find the point of intersection use this site to graph them https://www.desmos.com/calculator

  4. anonymous
    • one year ago
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    Can you help me with graphing

  5. campbell_st
    • one year ago
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    just type the equation as its written it will graph it for you

  6. anonymous
    • one year ago
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    okay what do I do after that?

  7. anonymous
    • one year ago
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    @Nnesha

  8. campbell_st
    • one year ago
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    just look at the graph and find the point where the lines intersect

  9. anonymous
    • one year ago
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    I don't understand..

  10. anonymous
    • one year ago
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    @kropot72

  11. anonymous
    • one year ago
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    @satellite73

  12. kropot72
    • one year ago
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    Did you go to the link that @campbell_st gave you, and typed in the equations?

  13. anonymous
    • one year ago
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    Yeah but I just don't know what am I supposed to do after that

  14. kropot72
    • one year ago
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    Did you get this?

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  15. kropot72
    • one year ago
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    What is the x-value where the red and the blue lines intersect? What is the y-value where the red and the blue lines intersect? These values give the solution.

  16. anonymous
    • one year ago
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    it says -1, 2 & 0, 1.4

  17. kropot72
    • one year ago
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    You need to look at only one of the dots, that is the dot where the red and the blue lines intersect. You have correctly identified this point as (-1, 2) which is the solution to the system of equations. The other ordered pair (0, 1.4) is the y-intercept and is not a solution.

  18. kropot72
    • one year ago
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    @proud_yemeniah_ Do you understand now?

  19. anonymous
    • one year ago
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    oh okay yes thank you :)

  20. kropot72
    • one year ago
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    You're welcome :)

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