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anonymous

  • one year ago

Which description best describes the solution to the following system of equations? y = −one halfx + 9 y = x + 7 Lines y = −one halfx + 9 and y = x + 7 intersect the x-axis. Lines y = −one halfx + 9 and y = x + 7 intersect the y-axis. Line y = −one halfx + 9 intersects the origin. Line y = −one halfx + 9 intersects line y = x + 7.

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  1. anonymous
    • one year ago
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    @Thebadyboy

  2. Zale101
    • one year ago
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    Do the two function have the same y-intercept? If so, then they intersect ion is at the y-axis, if not then they don't intersect at the y-axis at all. Do the two function have the same x-intercept? If so, then they intersection is at the x-axis, if not then they don't intersect at the x-axis at all.

  3. anonymous
    • one year ago
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    i don't know @Zale101

  4. Zale101
    • one year ago
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    If you have no idea what an origin mean, then take a look at this graph. Do you think the two lines are located at the origin (0,0)? dw:1433462825582:dw|

  5. anonymous
    • one year ago
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    no

  6. Zale101
    • one year ago
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    |dw:1433462909038:dw|

  7. anonymous
    • one year ago
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    so would it be C?

  8. anonymous
    • one year ago
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    yes or no @Zale101

  9. Zale101
    • one year ago
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    \(\Large y = −\frac{1}{2}x + 9\) \(\Large y = x + 7\) Does the functions intersect at (0,0) meaning do both of the equations has the input x=0 and y=0 as the output? Plug x=0 and see what you get for y in both of the equations. Can you do that?

  10. anonymous
    • one year ago
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    ugh this is so confusing

  11. Zale101
    • one year ago
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    \(\large y = −\frac{1}{2}x + 9 \) what is y when x=0? \(\large y = x + 7\) what is y when x=0?

  12. anonymous
    • one year ago
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    8.5?!

  13. Zale101
    • one year ago
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    \(\Large y = −\frac{1}{2}(0) + 9=?\) \( \large y = (0) + 7=?\)

  14. Zale101
    • one year ago
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    8.5 is incorrect

  15. anonymous
    • one year ago
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    8.5 and 7

  16. Zale101
    • one year ago
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    7 is correct for the second equation, but how did you get 8.5 for the first equation?

  17. anonymous
    • one year ago
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    -1/2 +9

  18. Zale101
    • one year ago
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    -1/2 times 0 is not -1/2 it is 0

  19. anonymous
    • one year ago
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    oh so its 9 and 7

  20. Zale101
    • one year ago
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    Yes

  21. anonymous
    • one year ago
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    9 intercepts the x axis and 7 intercepts the y axis

  22. anonymous
    • one year ago
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    correct?

  23. Zale101
    • one year ago
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    so both of the equations have different y-intercept and it doesn't lie on the origin. None of them had y=0 when x=0, and they each had a different y-intercept. The first equation had (0,9) and the second equation had (0,7).

  24. anonymous
    • one year ago
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    would it be D??

  25. anonymous
    • one year ago
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    i think so

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