SOLUTION: what are the coordinates of the point where the line containing K(-3,5) and L(5,4) crosses the y axis?

Algebra ->  Customizable Word Problem Solvers  -> Misc -> SOLUTION: what are the coordinates of the point where the line containing K(-3,5) and L(5,4) crosses the y axis?      Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 436742: what are the coordinates of the point where the line containing K(-3,5) and L(5,4) crosses the y axis?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
y = mx + b ==> 5 = -3m + b, and
4 = 5m + b
Multiply 5 = -3m + b by 5, to get 25 = -15m + 5b
Multiply 4 = 5m + b by 3 to get 12 = 15m + 3b
Add:
37 = 8b ==> b = 37/8, the y-intercept.