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Mathematics 21 Online
OpenStudy (anonymous):

What type of system of linear equations is this? y=1/2x+3 y = –5x – 4 A. consistent and independent B. consistent and dependent C. inconsistent D. independent and inconsistent

jimthompson5910 (jim_thompson5910):

Are you able to graph these 2 equations?

OpenStudy (anonymous):

yes]

jimthompson5910 (jim_thompson5910):

do these 2 lines intersect at one point?

jimthompson5910 (jim_thompson5910):

or are they parallel?

OpenStudy (anonymous):

idk

jimthompson5910 (jim_thompson5910):

go ahead and graph them and tell me what you get

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

they intersect

jimthompson5910 (jim_thompson5910):

good, they intersect exactly once

jimthompson5910 (jim_thompson5910):

so that makes them consistent and independent

jimthompson5910 (jim_thompson5910):

if they were parallel, then they'd be inconsistent

OpenStudy (anonymous):

okay thank you

jimthompson5910 (jim_thompson5910):

if they were the same line, then it'd be dependent and consistent

jimthompson5910 (jim_thompson5910):

you're welcome

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