SOLUTION: I am asking this question again because I am just not sure I got it! line passing thru (3,0) and (-1,-2) slope:1/2 so what is the equation of the line in y=mx+b form

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Question 384758: I am asking this question again because I am just not sure I got it!
line passing thru (3,0) and (-1,-2) slope:1/2
so what is the equation of the line in y=mx+b form
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
The equation of the line passing through the points: (3, 0) and (-1, -2) and having a slope of 1%2F2 in slope-intercept form:y+=+mx%2Bb where the slope m+=+1%2F2.
Start with:
y+=+%281%2F2%29x%2Bb since you were given the slope, m. To find the value of b, the y-intercept, substitute the x- and y-coordinates from either one of the two given points. Let's choose (3, 0)
y+=+%281%2F2%29x%2Bb Substitute x = 3 and y = 0.
0+=+%281%2F2%29%283%29%2Bb Simplify.
0+=+%283%2F2%29+%2B+b Subtract 3%2F2 from both sides.
-%283%2F2%29+=+b Now substitute this into the equation above to get:
y+=+%281%2F2%29x-3%2F2