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#1 2007-01-22 02:49:30

jxharmon
Member
Registered: 2007-01-08
Posts: 104

slope and y intercept

would like to know if I did this right: find the slope and y-intercept of the following equation:
2x- 3y =6
3y =-2x+6             y=-2/3x + 2       slope= -2/3          y-intercept =(0,2)

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#2 2007-01-22 02:52:03

Dross
Member
Registered: 2006-08-24
Posts: 325

Re: slope and y intercept

jxharmon wrote:

would like to know if I did this right: find the slope and y-intercept of the following equation:
2x- 3y =6
3y =-2x+6             y=-2/3x + 2       slope= -2/3          y-intercept =(0,2)

Your method is right, but you've got some of the algebra wrong - take it in nice, simple steps:

2x - 3y = 6

2x = 6 + 3y

2x - 6 = 3y

3y = 2x - 6

y = (2/3)x - 2

So, the slope is actually 2/3, and the y-intercept is at (0, -2).


Bad speling makes me [sic]

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