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What is the slope of the line whose equation is 3x + 6y = 9?. . A. -3. . . B.-1/2. . . . C.1/2. . . D.6. .
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Aug 15, 2017
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What is the slope of the line whose equation is 3x + 6y = 9?. . A. -3. . . B.-1/2. . . . C.1/2. . . D.6. .
Mathematics
high-school
Luis Rizo
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Luis Rizo
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As we knowthat
3x + 6y = 9.....9subtract 3x from both sides]
6y = -3x + 9....[now divide both sides by 6]
y = -3/6x + 9/6....
y = -1/2x + 3/2
slope is -1/2
so correct option is B
hope it helps
Jianwei
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Aug 18, 2017
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Jianwei
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if u put the equation in y = mx + b form, the slope will be in the m position.
3x + 6y = 9.....subtract 3x from both sides
6y = -3x + 9....now divide both sides by 6
y = -3/6x + 9/6.....reduce
y = -1/2x + 3/2
so ur slope is -1/2
Redzedi
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Aug 21, 2017
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Redzedi
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