OpenStudy (anonymous):

Which ordered pairs are solutions to the equation? y = 2x + 5 A. (5, 15) and (9, 2) B. (5, 10) and (2, 9) C. (5, 15) and (2, 9) D. (15, 5) and (2, 9)

3 years ago
OpenStudy (jim_thompson5910):

when you plug in x = 5, what do you get for y?

3 years ago
OpenStudy (anonymous):

15

3 years ago
OpenStudy (jim_thompson5910):

what about x = 9? what is y when x = 9 ?

3 years ago
OpenStudy (anonymous):

23

3 years ago
OpenStudy (jim_thompson5910):

so (5,15) lies on the line but (9,2) does NOT lie on the line

3 years ago
OpenStudy (jim_thompson5910):

see how I'm getting this?

3 years ago
OpenStudy (anonymous):

So it's C

3 years ago
OpenStudy (jim_thompson5910):

good

3 years ago
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