Question 234056: Which of the following pairs of equations has no solution? A}k+2j=6,k-2j=4
B}k+2j=6,k+2j=4
C}k+2j=6,k+4j=12
d}k+2j=6,k-4j=12
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Which of the following pairs of equations has no solution?
In each case check the slopes and the intercepts.
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A}k+2j=6,k-2j=4
k = -2j+6
k = 2j+4
Slopes different so has a solution
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B}k+2j=6,k+2j=4
k = -2j+6
k = -2j+4
Slopes equal so no solution
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C}k+2j=6,k+4j=12
slopes different
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d}k+2j=6,k-4j=12
slopes different
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Cheers,
Stan H.
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