Post a New Question

algebra 2

posted by .

How do you find the points of intersection, if any, of the equations:
x^2 + y^2 = 5
x - y = 1

  • algebra 2 -

    You would solve for one of the unknowns using the linear equation (x-y=1 => x=y+1)
    and substitute into the quadratic equation, and solve for the only unknown, y.
    (y+1)^2+y^2=5
    y^2+y-2=0
    y=1 or -2
    Now substitute y=1 or -2 into the linear equation to get the corresponding values of x. This will complete the solution of two intersection points.

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question