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Mathematics 20 Online
OpenStudy (anonymous):

Please help! MEDAL!!! Which shows three ordered pairs that are all solutions of the equation y = x + 4? A. (1, 4), (2, 6), and (3, 7) B. (1, 4), (2, 8), and (3, 12) C. (3, 7), (5, 9), and (7, 10) D. (3, 7), (5, 9), and (7, 11)

OpenStudy (mertsj):

Do you see that the equation says that y is 4 more than x?

OpenStudy (anonymous):

yes

OpenStudy (mertsj):

Do you know that x is the first number in the ordered pair and y is the second number in the ordered pair?

OpenStudy (anonymous):

yes i do

OpenStudy (mertsj):

I am going to make up an ordered pair: (6,5)

OpenStudy (anonymous):

ok

OpenStudy (mertsj):

In that ordered pair is y 4 more than x?

OpenStudy (anonymous):

no

OpenStudy (mertsj):

Right!!! y is one less than x. Now you make up an ordered pair where y is 4 more than x.

OpenStudy (anonymous):

(2,6)

OpenStudy (mertsj):

Wonderful!!!

OpenStudy (anonymous):

so answer is D?

OpenStudy (mertsj):

Now go back to your problem and pick the answer which has ordered pairs in which y is 4 more than x

OpenStudy (mertsj):

Very good. You are too smart.

OpenStudy (anonymous):

No i am not really i suck at math!

OpenStudy (anonymous):

can you help me with 2 more questions?

OpenStudy (mertsj):

But if you work hard, you will get better.

OpenStudy (mertsj):

Probably.

OpenStudy (anonymous):

oh ok.

OpenStudy (anonymous):

wait i think i can handle the rest.

OpenStudy (mertsj):

ok

OpenStudy (anonymous):

bye and thanks so much!

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