SOLUTION: Give the slope-intercept form of the equation passing through the points (1,-2), m=-2/5. Graph the line.

Algebra ->  Graphs -> SOLUTION: Give the slope-intercept form of the equation passing through the points (1,-2), m=-2/5. Graph the line.      Log On


   

Question 669732: Give the slope-intercept form of the equation passing through the points (1,-2), m=-2/5. Graph the line.
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
y+=+mx%2Bb

-2+=+%28-2%2F5%29%281%29%2Bb

-2+=+-2%2F5%2Bb

-2%2B2%2F5+=+b

-8%2F5+=+b

b+=+-8%2F5

So the equation of the line is y+=+%28-2%2F5%29x-8%2F5

Use a graphing calculator to get