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Tabbiejack
Which ordered pair is a solution of the inequality? y≥4x - 5 A. (3, 4) B. (2, 1) C. (3, 0) D. (1, 1)
plug each point into the inequality if you get a true inequality, then that point is in the solution set
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
ok I suck at this really bad
|dw:1367555610977:dw| it would be all points on that line as well as all points above the line I believe
well just practice practice practice and you'll get better
I am a mom trying to help my 13yr old
follow the steps I did to check choice A to check the other choices
you're looking for an inequality that's true when you plug in the given point
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
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.
The answer should be D because \[1\ge4(1)-5\]
are you sure you got C
when you use c you get \[0\ge4(3)-5\] \[0\ge7\] Which isn't true so I am pretty positive it is D
Thanks she just puts anything down...
No problem I'm glad I could help
A. (3, 4) B. (2, 1) C. (3, 0) D. (1, 1)
I have another question she go 2 more wrong can I trouble you?
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
it should be infinitely many because if you put them into slope intercept form they are the same line
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.
|dw:1367556917704:dw| the answer is B because we can't have negative time
I will open another so a can give another medal
I will open another so a can give another medal