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Mathematics 17 Online
OpenStudy (anonymous):

Determine whether the graphs of the two equations are perpendicular. x+2y=7 2x+4y=9

OpenStudy (saifoo.khan):

they arent perp.

OpenStudy (anonymous):

the arent

OpenStudy (saifoo.khan):

they will intersect at a point.

OpenStudy (saifoo.khan):

and they arent perp.

OpenStudy (saifoo.khan):

their slope wont follow the rule/

OpenStudy (anonymous):

because gradient of L1 * gradient of L2 is not equal to -1

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