Which ordered pair is a solution of the inequality?
y≥4x - 5
A. (3, 4)
B. (2, 1)
C. (3, 0)
D. (1, 1)

- anonymous

Which ordered pair is a solution of the inequality?
y≥4x - 5
A. (3, 4)
B. (2, 1)
C. (3, 0)
D. (1, 1)

- katieb

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- jim_thompson5910

plug each point into the inequality
if you get a true inequality, then that point is in the solution set

- jim_thompson5910

for example, let's check choice A
y≥4x - 5
4≥4*3 - 5
4≥12 - 5
4≥7
which is FALSE, so (3, 4) is NOT a solution
So choice A is out

- anonymous

ok I suck at this really bad

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## More answers

- anonymous

|dw:1367555610977:dw|
it would be all points on that line as well as all points above the line I believe

- jim_thompson5910

well just practice practice practice and you'll get better

- anonymous

I am a mom trying to help my 13yr old

- anonymous

What is the answer?

- jim_thompson5910

follow the steps I did to check choice A to check the other choices

- jim_thompson5910

you're looking for an inequality that's true when you plug in the given point

- anonymous

well good luck I am pretty sure that the teacher will want the line thing I'm not sure it depends on what was taught but the answers will be D

- anonymous

I don't tell the answers I just check to know if her work is right I have a degree but I have done this in years.

- anonymous

The answer should be D because
\[1\ge4(1)-5\]

- anonymous

are you sure
you got C

- anonymous

she got C

- anonymous

when you use c you get
\[0\ge4(3)-5\]
\[0\ge7\]
Which isn't true so I am pretty positive it is D

- anonymous

Thanks she just puts anything down...

- anonymous

No problem I'm glad I could help

- anonymous

A. (3, 4)
B. (2, 1)
C. (3, 0)
D. (1, 1)

- anonymous

so D

- anonymous

Yes D

- anonymous

I have another question she go 2 more wrong can I trouble you?

- anonymous

go right ahead

- anonymous

How many solutions does the system have?
x = -4y + 4
2x + 8y = 8
A. one solution
B. two solutions
C. infinitely many solutions
D. no solution

- anonymous

it should be infinitely many because if you put them into slope intercept form they are the same line

- anonymous

so c

- anonymous

Yes

- anonymous

ok last 1

- anonymous

I'm ready

- anonymous

The local zoo has two water tanks for the elephant exhibit that are leaking One water tank contains 12 gal of water and is leaking at a constant rate of 3 gal/h. The second water tank contains 8 gal of water and is leaking at a constant rate of 5 gal/h. When will the two tanks have the same amount of water? Explain. Let x = the number of hours the tanks are filling and let y = the number of gallons in the tank.
A. In 2 hours, because the solution to the system is (2,18).
B. They will never have the same amount of water because the solution to the system is (–2,18). It is not possible to have time be –2 hours.
C. In –2 hours, because the solution to the system is (–2,18).
D. They will never have the same amount of water because the solution to the system is (–2,18). It is not possible to have –2 gallons in the tanks.

- anonymous

|dw:1367556917704:dw|
the answer is B because we can't have negative time

- anonymous

you are a gem

- anonymous

I will open another so a can give another medal

- anonymous

I will open another so a can give another medal

- anonymous

Thank you

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