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anonymous

  • one year ago

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  1. anonymous
    • one year ago
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    Sal's Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2 and the profit on every wrap is $3. Sal made a profit of $1,470 from lunch specials last month. The equation 2x + 3y = 1,470 represents Sal's profits last month, where x is the number of sandwich lunch specials sold and y is the number of wrap lunch specials sold.

  2. anonymous
    • one year ago
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    2)Describe how you would graph this line using the slope-intercept method. Be sure to write using complete sentences. 3)Write the equation in function notation. Explain what the graph of the function represents. Be sure to use complete sentences. 4)Graph the function. On the graph, make sure to label the intercepts. You may graph your equation by hand on a piece of paper and scan your work or you may use graphing technology.

  3. anonymous
    • one year ago
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    (i really need help on this) @Michele_Laino please please please help me!!

  4. anonymous
    • one year ago
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    idk how sorry

  5. anonymous
    • one year ago
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    you know someone how can help me? @Skielerlucas04

  6. anonymous
    • one year ago
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    @yomamabf

  7. anonymous
    • one year ago
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    @campbell_st help please please!!!

  8. anonymous
    • one year ago
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    @yomamabf can you help me? please!!!

  9. anonymous
    • one year ago
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    @Lady.Liv1776

  10. campbell_st
    • one year ago
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    well there a few things to consider... this is a 1st quadrant graph so find the y- intercept by letting x = 0 and solving for y so you need to solve 3y = 1470

  11. anonymous
    • one year ago
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    |dw:1437595835619:dw|

  12. anonymous
    • one year ago
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    y=490? @campbell_st

  13. campbell_st
    • one year ago
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    next you need to find the slope of the line 2x+3y = 1470 so 3y = -2x + 1470 then divide by 3 and you get \[y = -\frac{2}{3}x + 490\] so starting at the y- intercept, go right 3 units and down 2 units or some multiply of that say 30 right and 20 down |dw:1437595773582:dw| then draw a line

  14. campbell_st
    • one year ago
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    that's correct for the y-intercept

  15. anonymous
    • one year ago
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    so whats nexts?

  16. anonymous
    • one year ago
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    what i need to do i see you solve everything

  17. campbell_st
    • one year ago
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    in function notation its just \[f(x) = -\frac{2}{3} x + 490\]

  18. anonymous
    • one year ago
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    so we done with the first question?

  19. campbell_st
    • one year ago
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    so what this is saying is that as the number of sandwiches increases the number of wraps decreases. so for every 30 sandwiches sold the wraps are decreasing by 20

  20. campbell_st
    • one year ago
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    to graph the function you already have the y-intercept so then find the x-intercept and let y = 0 so you need to solve 2x = 1470 hope it makes sense

  21. anonymous
    • one year ago
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    x=735? @campbell_st

  22. campbell_st
    • one year ago
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    that's correct, so make the x intercept and draw a line between the y-intercept and the x- intercept.

  23. anonymous
    • one year ago
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    @zufari already did

  24. anonymous
    • one year ago
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    @campbell_st

  25. campbell_st
    • one year ago
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    that's correct

  26. anonymous
    • one year ago
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    thank you @campbell_st can we move to the question number 3? please

  27. campbell_st
    • one year ago
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    I posted a solution to 3 and 4 above...

  28. anonymous
    • one year ago
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    really? i dont see ;/

  29. anonymous
    • one year ago
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    |dw:1437597260688:dw|

  30. anonymous
    • one year ago
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    its that the answer for number 4 right? @campbell_st

  31. campbell_st
    • one year ago
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    look for the function notation... above... and there is an explanation there as well well remember the graph is 1st quadrant... as you can't make a negative number of sandwiches or wraps...

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