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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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What is the slope of the line whose equation is 3x + 6y = 9?. . A. -3. . . B.-1/2. . . . C.1/2. . . D.6. .

User Luis Rizo
by
7.7k points

2 Answers

5 votes
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
User Jianwei
by
7.9k points
3 votes
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
User Redzedi
by
8.4k points
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