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Mathematics 12 Online
undeadknight26 (undeadknight26):

Is this right? Should be easy!

undeadknight26 (undeadknight26):

A company produces accessories for smart phones and tablets. The profit on each smart phone case is $2 and the profit on each tablet case is $3. The company made a profit of $1,200 on the cases last month. The equation 2x + 3y = 1,200 represents the company's profit from cases last month, where x is the number of smart phone cases sold and y is the number of tablet cases sold. 1. Change the equation into slope-intercept form. Identify the slope and y-intercept of the equation. Be sure to show all of your work. 2x + 3y = 1200 2x + 3(0) = 1200 2x = 1200 /2 /2 X = 600 2x + 3y = 1200 2(0) + 3y = 1200 3y = 1200 /3 /3 Y = 400 The x intercept would be 600 and the y intercept will be 400.

undeadknight26 (undeadknight26):

@Chineseboy15 @hartnn please help!

OpenStudy (anonymous):

600x*400y

OpenStudy (anonymous):

yes it is right

undeadknight26 (undeadknight26):

My teacher said it wasn't the slope intercept equation though...

undeadknight26 (undeadknight26):

How do i change this to slope intercept equation?

undeadknight26 (undeadknight26):

would it be: y = 2x + 3?

undeadknight26 (undeadknight26):

then to solve for it you put 1200 = 2x + 3

OpenStudy (anonymous):

Can you tell me what is slope intercept equation?

undeadknight26 (undeadknight26):

y = mx + b

undeadknight26 (undeadknight26):

or no wait would it be 3 = 2x + 1200?

OpenStudy (anonymous):

It should be -1200.

OpenStudy (anonymous):

Is the value of y 1?

undeadknight26 (undeadknight26):

not it looks like it would be 3 because in the original equation it was 2x + 3y = 1200 saying that 2x was x and 3y was y...that would make 1200 the only b right?

undeadknight26 (undeadknight26):

where did the 1/3 come from?

OpenStudy (anonymous):

Do you remember this? A number (not zero) times on both sides of the equation, the equation will not change.

undeadknight26 (undeadknight26):

sorry im getting my breakfast together :D

undeadknight26 (undeadknight26):

umm i think i remember that...so thats why you put the 1/3 there?

OpenStudy (anonymous):

Yes. For if I didn't, I could not get a single y.

OpenStudy (anonymous):

Ah, that is the difference! You are having breakfast, I am soon going to sleep.

undeadknight26 (undeadknight26):

lol!!! I guess its all about the position of the sun. since we are opposite the sun is over here and themoon is over there right?

OpenStudy (anonymous):

Yes, what time is that in Florida? In Beijing it is 23:30.

undeadknight26 (undeadknight26):

In florida it is 10:31 AM.

OpenStudy (anonymous):

lol!!! Do you understand the question now?

undeadknight26 (undeadknight26):

When you did 2x - 1200 how did that work>

OpenStudy (anonymous):

???

undeadknight26 (undeadknight26):

This is what you did right> You see, 2x + 3y = 1200 2x-1200=3y 1/3*(2x-1200)=3y*1/3 2/3x-400=y

OpenStudy (anonymous):

Yes, and?

undeadknight26 (undeadknight26):

when i subtract 1200 from 2x i get -1998

undeadknight26 (undeadknight26):

then i multiply it by .33 and get 395.34.

OpenStudy (anonymous):

Sorry, I made mistake. 2x + 3y = 1200 2x-1200=-3y 1/3*(2x-1200)=1/3*-3y 2/3x-400=-y -2/3x+400=y

undeadknight26 (undeadknight26):

why -3y?

OpenStudy (anonymous):

For 3y is moved to other side.

undeadknight26 (undeadknight26):

ohhhh ok i think i get it now!!! so how do i find the y now?

OpenStudy (anonymous):

Try to find x, then you will get y.

undeadknight26 (undeadknight26):

so x = 3y - 1200?

OpenStudy (anonymous):

2x=1200-3y x=1200-3y/2

undeadknight26 (undeadknight26):

Oh wait the I have to solve this right?

undeadknight26 (undeadknight26):

@hartnn @helppls123 @ash2326 @amistre64 @BulletWithButterflyWings please help me!

undeadknight26 (undeadknight26):

@ehuman @SolomonZelman @kelliegirl33 @kaylarocks001 @satellite73 @SWAG please help me please.

undeadknight26 (undeadknight26):

@BangkokGarrett @Easyaspi314 @kewlgeek555

OpenStudy (amistre64):

what is it we are looking to do? this is just alot to try to read thru

OpenStudy (amistre64):

A company produces accessories for smart phones and tablets. The profit on each smart phone case is $2 the profit on each tablet case is $3. The company made a profit of $1,200 on the cases last month. The equation 2x + 3y = 1,200 represents the company's profit from cases last month, where x is the number of smart phone cases sold and y is the number of tablet cases sold. 1. Change the equation into slope-intercept form. Identify the slope and y-intercept of the equation. Be sure to show all of your work. it is not asking you to input any values, just to change the way the equation looks ... the format of the equation. 2x + 3y = 1200 2x + 3(0) = 1200 2x = 1200 /2 /2 X = 600 2x + 3y = 1200 2(0) + 3y = 1200 3y = 1200 /3 /3 Y = 400 The x intercept would be 600 and the y intercept will be 400. all of this work is not addressing the question

undeadknight26 (undeadknight26):

Thank you i already found my answer.

OpenStudy (amistre64):

take the equation that is given in standard form: 2x + 3y = 1200 and put it into slope-intercept form: y = mx + b or in other words, "solve" for y .. get y all by itself on one side, and everything else to the other side using approved algebraic techniques

undeadknight26 (undeadknight26):

Sorry for wasting your time...

OpenStudy (amistre64):

'sok :)

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