help please!!!
A company's monthly profit increases by $1,000 each month. In January, the profit of the company was $25,000. If x = 0 represents January, which of the following equations represents the profit as a function of time (in months)?
A.
y = 25,000x + 1,000
B.
y = 1,000x
C.
y = 1,000x – 25,000
D.
y = 1,000x + 25,000
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OpenStudy (♪chibiterasu):
I would definitely say D, x being 0 just makes y = 25,000, which is the monthly profit.
OpenStudy (anonymous):
Profit can increase from an increase in revenue, a decrease in expenses or a combination of the two.
OpenStudy (anonymous):
@♪Chibiterasu
OpenStudy (♪chibiterasu):
What does this have to do with the question?
OpenStudy (anonymous):
can you help me in this one ?
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OpenStudy (anonymous):
Rewrite the standard form equation below into slope-intercept form.
x – 2y = 3
OpenStudy (♪chibiterasu):
Ok, well first we have to get the x onto the other side. Do you know how?
Slope-intercept is: y = mx + b
OpenStudy (anonymous):
so its like y=3/2x-1/2
OpenStudy (anonymous):
or y= (-)3/2x-1/2
OpenStudy (♪chibiterasu):
Not exactly . . .
First subtract x from both sides:
x – x -2y = -x + 3
-2y = -x + 3
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OpenStudy (♪chibiterasu):
Now divide -2 from both sides:
-2y/-2 = -x/-2 + 3
y = -1/2x + 3
OpenStudy (anonymous):
i got it thanks
OpenStudy (♪chibiterasu):
-x/-2 is the same as -1/2x
OpenStudy (♪chibiterasu):
Ok :3
OpenStudy (anonymous):
can you help me in another one?
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OpenStudy (♪chibiterasu):
Sure. o:
OpenStudy (anonymous):
Which of the following equations is in standard form?
A. y=1/2x
B. y= 1/2x-3
C. 4y-1=1/2x-3
D. 2x3y=14
OpenStudy (anonymous):
is b
OpenStudy (♪chibiterasu):
Standard form = Ax + By = C
OpenStudy (♪chibiterasu):
@desmonds No, and don't blurt out the answer please.
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OpenStudy (anonymous):
ok
OpenStudy (♪chibiterasu):
So from the example, can you tell which one is correct?
Now we know it isn't B. :P
OpenStudy (anonymous):
b?
OpenStudy (anonymous):
can you help me too
OpenStudy (♪chibiterasu):
No o:
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OpenStudy (♪chibiterasu):
A and B are replaced with digits. ;o
OpenStudy (anonymous):
or D
OpenStudy (♪chibiterasu):
Yep!! :3
OpenStudy (anonymous):
can you help me
OpenStudy (anonymous):
Which of the following equations is an example of the general form of the equation of a line in standard form?
A.
y = mx + b
B.
Ax = By + C
C.
By = Ax + C
D.
Ax + By = C
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OpenStudy (♪chibiterasu):
Post your question in the "Ask a question..." box
OpenStudy (♪chibiterasu):
@desmonds
OpenStudy (anonymous):
so on this one is B
OpenStudy (anonymous):
Which of the following equations is an example of the general form of the equation of a line in standard form?
A.
y = mx + b
B.
Ax = By + C
C.
By = Ax + C
D.
Ax + By = C
OpenStudy (anonymous):
standard form
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OpenStudy (♪chibiterasu):
Not exactly, the equal symbol is placed incorrectly.
OpenStudy (♪chibiterasu):
@desmonds Please delete that and post it in the Ask a question... box, it's rude to post your question in someone else's. :(
OpenStudy (anonymous):
its A then
OpenStudy (♪chibiterasu):
No, that's slope-intercept.
Ax + By = C ;o
OpenStudy (anonymous):
so its A y = mx + b
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OpenStudy (♪chibiterasu):
No . . .
OpenStudy (anonymous):
B
OpenStudy (♪chibiterasu):
It's D :|
OpenStudy (♪chibiterasu):
Ax + By = C
OpenStudy (anonymous):
ok thanks
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