SOLUTION: Find the slope and y-intercept. 6x – 9y = –72

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Question 123550: Find the slope and y-intercept.
6x – 9y = –72
Answer by HyperBrain(694) About Me  (Show Source):
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6x – 9y = –72

The slope intercept form is y=mx+b
where m is the slope and b is the y-intercept

So, we need to turn this to a slope intercept form.


6x-9y=-72
6x-6x-9y=-6x-72
0-9y=-6x-72
-9y=-6x-72
9y=6x+72
y=%286x-72%29%2F9
y=6x%2F9-72%2F9
y=2x%2F3-8

or
y=%282%2F3%29x%2B%28-8%29

SO, m=2%2F3 and b=-8
Therefore, the slope(m) is 2/3 and the y-intercept is -8

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HyperBrain!