SOLUTION: Hello out there,I need some help with one slope form problem, Write the point-slope form of the line that passes through (3,-3)and (5,1),for that problem I keep getting three diffe

Algebra ->  Linear-equations -> SOLUTION: Hello out there,I need some help with one slope form problem, Write the point-slope form of the line that passes through (3,-3)and (5,1),for that problem I keep getting three diffe      Log On


   

Question 84200: Hello out there,I need some help with one slope form problem, Write the point-slope form of the line that passes through (3,-3)and (5,1),for that problem I keep getting three different answers,one is y-1=2(x-5)or y-1=-2(x-5)and the other was y+1=-2(x+5),that problem is really hard.And well that is my only problem,thanks for whoever can help
Answer by tutor_paul(519) About Me  (Show Source):
You can put this solution on YOUR website!
When they give you two points, the first step is to find the slope (m).
The slope of a line is he change in y divided by the change in x. You can use the points given to find this:
m=%281-%28-3%29%29%2F%285-3%29%29
m=4%2F2
m=2
Now, you want to use the slope you just found in the above equation for the point/slope form of a line. You can use either of the two given points for your x1 and y1 terms. I will just pick the one you did:
y-1=2%28x-5%29
Good Luck,
tutor_paul@yahoo.com