SOLUTION: i am having trouble solving the problem m=-4/7 (5,4)

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Question 619428: i am having trouble solving the problem m=-4/7 (5,4)
Found 2 solutions by jim_thompson5910, ewatrrr:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
y+=+mx%2Bb

4+=+%28-4%2F7%29%285%29%2Bb

4+=+-20%2F7%2Bb

4%2B20%2F7+=+b

48%2F7+=+b

b+=+48%2F7

So the equation of the line is y+=+%28-4%2F7%29x%2B48%2F7

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Using the standard slope-intercept form for an equation of a line y = mx + b 

 where m is the slope and b the y-intercept.  

 m = -4/7 (5,4)

 y = (-4/7)x + b

 4 = (-4/7)5 + b

 48/7 = b

   y = (-4/7)x + 48/7   or  4x+7y = 48