SOLUTION: i need to know how many solutions the system has. x^2+y^2=4 and y=x-1

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: i need to know how many solutions the system has. x^2+y^2=4 and y=x-1      Log On


   

Question 589242: i need to know how many solutions the system has.
x^2+y^2=4 and y=x-1
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
x^2+y^2=4 is a circle
and y=x-1 is a line
the line crosses the circle twice
there are two solutions