Question

solve this system by graphing, is it consistant,inconsistant, dependant or independant 8x-7y=35
7y-8x=-35

Answer 1

consistent and dependent.

Answer 2

Infinite solutions.

Answer 3

8x-7y=35
7y-8x=-35



8x-7y=35
-8x+7y=-35


Now add the equations to get


(8x-7y)+(-8x+7y) = 35+(-35)


(8x+(-8x)) + (-7y+7y) = 0


0x+0y = 0


0 = 0


Since the equation is ALWAYS true, this means that there are an infinite number of solutions.


So the system is consistent and dependent.

Answer 4

Beam me up Jim ,I'm on your ship and medals to both you and saifoo!