Question

determine graphically whether the pair of linear equations 2x+3y=7;6x+9y=21 is consistent or inconsistent ​

Answer 1

Answer:

it is consistent

Step-by-step explanation:

• 2x+3y-7=0 ; 6x+9y-21
• a1/a2=2/6=1/3
• b1/b2=3/9=1/3
• c1/c2=-7/-21=1/3
• hence from above (a1/a2)=(b1/b2)=(c1/c2)
• so it is consistent

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