SOLUTION: What is the equation of the line that contains the points with (x,y) coordinatei greater than or equal to (-3,7) and (5,-1)?

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: What is the equation of the line that contains the points with (x,y) coordinatei greater than or equal to (-3,7) and (5,-1)?      Log On


   

Question 41158: What is the equation of the line that contains the points with (x,y) coordinatei greater than or equal to (-3,7) and (5,-1)?
Answer by psbhowmick(878) About Me  (Show Source):
You can put this solution on YOUR website!
The equation of a line passing through the points (-3,7) and (5,-1) is
%28y-7%29%2F%28-1-7%29+=+%28x-%28-3%29%29%2F%285-%28-3%29%29
or -%28y-7%29%2F8+=+%28x%2B3%29%2F8
or -%28y-7%29+=+%28x%2B3%29
or x+y=4
or x/4 + y/4 = 1
graph%28300%2C300%2C-10%2C10%2C-12%2C12%2C4-x%29
This is a st. line with intercept 4 on each of the coordinate axes.
All points on that side of the line x+y=4 which is opposite to the origin satisfy the inequality x+y >= 4.