***Fan and Medal***

- anonymous

***Fan and Medal***

- schrodinger

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- anonymous

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.

- anonymous

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.

- anonymous

(i really need help on this) @Michele_Laino please please please help me!!

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## More answers

- anonymous

idk how sorry

- anonymous

you know someone how can help me? @Skielerlucas04

- anonymous

- anonymous

@campbell_st help please please!!!

- anonymous

@yomamabf can you help me? please!!!

- anonymous

@Lady.Liv1776

- campbell_st

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

- anonymous

|dw:1437595835619:dw|

- anonymous

y=490? @campbell_st

- campbell_st

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

- campbell_st

that's correct for the y-intercept

- anonymous

so whats nexts?

- anonymous

what i need to do i see you solve everything

- campbell_st

in function notation
its just
\[f(x) = -\frac{2}{3} x + 490\]

- anonymous

so we done with the first question?

- campbell_st

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

- campbell_st

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

- anonymous

x=735? @campbell_st

- campbell_st

that's correct, so make the x intercept and draw a line between the y-intercept and the x- intercept.

- anonymous

@zufari already did

- anonymous

- campbell_st

that's correct

- anonymous

thank you @campbell_st can we move to the question number 3? please

- campbell_st

I posted a solution to 3 and 4 above...

- anonymous

really? i dont see ;/

- anonymous

|dw:1437597260688:dw|

- anonymous

its that the answer for number 4 right? @campbell_st

- campbell_st

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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