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Which equation, when graphed with the given equation, will form a system that has no solution?

A)y=3x+6
B)y=-3(x+6)
C)y=-3(x-2)
D) y=3(x-2)

Which equation, when graphed with the given equation, will form a system that has-example-1
User Randyaa
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2 Answers

5 votes

Answer: it is b

Step-by-step explanation: just took the quiz

User Viktor Nonov
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4 votes

The correct answer is B.

This is because for two lines to have no solutions they must have the same slope and different y intercepts. In this case we can distribute the -3 in the B equation and see this is precisely what we get.

y = -3(x + 6)

y = -3x - 18

Since the slopes are now the same in both equations (-3) and the intercepts are different (6 and - 18), we know they are parallel and have no solution.

User JohnKlehm
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